Orenco AdvanTex AX100 User manual

Start-Up and Maintenance of
AdvanTex®AX100 & AX20 Commercial
Wastewater Treatment Systems
AdvanTex® O&MMANUAL
800-348-9843 • 541-459-4449
www.orenco.com
www.vericomm.net
Orenco®
COMMERCIAL
MANUAL
O&M

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AIM-OM-ATX-3, Rev. 2.1, 05/15 • Copyright Orenco Systems®, Inc. Property of Orenco Systems®, Inc. Do not reproduce or distribute without written authorization from Orenco: 800-348-9843.
AdvanTex® O&MMANUAL
COMMERCIAL TREATMENT SYSTEMS
About Orenco
Since 1981, Orenco Systems®, Inc. has researched, designed, and manufactured leading-edge onsite
and decentralized wastewater treatment technologies. We are one of the nation’s leading manufacturers
and suppliers of equipment for the collection and treatment of wastewater. At Orenco, we specialize in
the manufacture of complete treatment systems for residential, commercial and community applications.
Wastewater collection and treatment is our only job. When you purchase an Orenco system, you can be
confident you have chosen the best equipment available.
Assistance
In addition to providing quality equipment, Orenco prides itself on its outstanding customer service and
technical assistance. Should you have any questions regarding your system, components, instructions, or
this O&M Manual, please contact us for assistance. Please include the name and location of your project
or system with any correspondence, so we can quickly respond to your request.
When Your Equipment Arrives
Inspect your order for completeness and inspect each component for shipping damage. Check to be sure
that the instructions and items supplied comply with your state and local regulations. Carefully read and
follow all instructions. Be aware that improper system or component installation may void warranties.
Introduction

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Copyright Orenco Systems®, Inc. Property of Orenco Systems®, Inc. Do not reproduce or distribute without written authorization from Orenco: 800-348-9843. • AIM-OM-ATX-3, Rev. 2.1, 05/15
AdvanTex® O&MMANUAL
COMMERCIAL TREATMENT SYSTEMS
Table of Contents
Introduction
About Orenco................................................................................. 2
Assistance..................................................................................... 2
When Your Equipment Arrives ...................................................... 2
About the AdvanTex®Treatment System...................................... 4
Start-Up & Operation
Introduction ................................................................................... 5
Roles and Responsibilities............................................................ 5
Safety Precautions........................................................................ 5
Recommended Tools and Equipment........................................... 6
Pre-Start-up Inspection ................................................................ 6
- Inspection Points – Control Panels........................................ 7
- Inspection Points – Tanks and Basins ................................... 8
- Inspection Points – Pumps .................................................. 10
- Inspection Points – System Timer Settings......................... 12
- Inspection Points – Recirculation/Blend Tank..................... 13
- Inspection Points – AdvanTex Filter Pods............................ 13
- Inspection Points – Vent Fan Assembly............................... 14
- Inspection Points – Distribution Valve ................................. 14
Housekeeping ............................................................................. 14
Maintenance
Tools, Equipment, and Spare Parts............................................. 15
Record Keeping........................................................................... 15
Maintenance Equipment............................................................. 15
Preventive Maintenance ............................................................. 16
Scheduled Maintenance ............................................................. 16
- Monthly Maintenance .......................................................... 16
- Quarterly Maintenance ........................................................ 17
- Semi-Annual Maintenance .................................................. 17
- Annual Maintenance ............................................................ 18
- Scheduled Maintenance Reference Chart........................... 19
Corrective Maintenance.............................................................. 20
- High Liquid Level Alarm ....................................................... 20
- Low Liquid Level Alarm........................................................ 21
- Removing & Replacing Inoperative Floats........................... 21
- Removing & Replacing Inoperative Pumps......................... 22
Notes ........................................................................................... 23
Appendices
Warranty and Materials List.......................................................... A
Installation/Maintenance Instructions and
Field Maintenance Report Form ................................................... B
Submittals ..................................................................................... C
Pump Repair Manual .................................................................... D
Automatic Distributing Valve Manual & Booklet........................... E
Control Panel................................................................................. F
Material Specifications ................................................................. G
Design Criteria............................................................................... H

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AdvanTex® O&MMANUAL
COMMERCIAL TREATMENT SYSTEMS
About the AdvanTex Treatment System
Primary Tank
The primary tank provides passive primary wastewater treatment. There
can be one or more primary tanks in parallel or series, depending on
the size of the system. In certain applications, the primary tank may be
preceded by a grease interceptor tank.
The primary tank is an enclosed, watertight receptacle designed to
collect wastewater; segregate settleable and floatable solids (sludge
and scum); accumulate, consolidate, and store solids; digest organic
matter; and discharge treated effluent. BOD (biochemical oxygen
demand) removals of greater than 65% and TSS (total suspended
solids) removals of greater than 70% are easily accomplished. In the
primary tank, wastewater separates into three distinct layers: a floating
scum layer, a bottom sludge layer, and a clear zone in between, which is
relatively free of large solids. An effluent filter or pump vault allows liquid
effluent from the clear zone to be transported to the recirculation/blend
or recirculation/blend and anoxic tank.
Anoxic Tank (if applicable)
The anoxic (low oxygen) tank enhances the denitrification of AdvanTex®
filtrate. It is sized based on the design flow of the system. In systems that
use an anoxic tank, it is generally located between the primary tank, flow
splitter basin, and recirculation/blend tank in the treatment train.
The anoxic tank provides the ideal environment for carbonaceous
microbes that reduce nitrates to nitrogen gas (denitrification) from
AdvanTex filtrate returning from the flow splitter basin. The harmless
nitrogen gas is released freely back into the atmosphere.
Recirculation/Blend Tank
The recirculation/blend tank reduces the strength of the effluent being
applied to the AdvanTex filter. It is sized at 80 to 100% of the design flow.
It is located after the primary treatment tank and before the AdvanTex
textile filter.
The reduction in effluent strength is achieved by mixing treated filtrate
from the AdvanTex filter with primary treated effluent at the recirc valve,
located at the inlet of the recirculation/blend tank. A timer-controlled
pump at the outlet end of the tank then sends the blended effluent to the
AdvanTex filter.
AdvanTex®Textile Filter
The AdvanTex textile filter pod provides secondary wastewater treatment.
There can be one or more AdvanTex pods, depending on the size of the
system.
The filter is a sturdy, watertight fiberglass basin filled with an engineered
textile material. The textile media has a very large surface area and void
volume (for free flow of oxygen). Wastewater percolates both through
and between the textile media. A visible biological film normally develops
on the filter media within a few days of system start-up. Within the filter,
aerobic conditions exist that are ideal for microbes that convert ammonia
to nitrate (nitrification). BOD and TSS reductions occur almost immediately.
Nitrification may take four to six weeks, depending on ambient temperature.
After percolating through the filter media, the effluent gravity-flows to the
recirculating valve. On systems designed for enhanced nitrogen removal,
the effluent first flows to a flow splitter basin where a percentage of the
effluent is diverted to the inlet side of a primary tank or anoxic tank. The
remainder flows to the recirc valve, where it is directed either into the
recirculation/blend tank or discharged.
Scum
Clear
Sludge

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Copyright Orenco Systems®, Inc. Property of Orenco Systems®, Inc. Do not reproduce or distribute without written authorization from Orenco: 800-348-9843. • AIM-OM-ATX-3, Rev. 2.1, 05/15
AdvanTex® O&MMANUAL
COMMERCIAL TREATMENT SYSTEMS
Introduction
This section covers the start-up of an AdvanTex®-AX100 Treatment
System in a commercial application. The formal start-up of an AdvanTex
Treatment System should only be performed by trained personnel. As a
trained member of the team performing the system start-up, you play
a critical role in the operation of the system. The decisions made at the
time of the start-up will determine the long-term maintenance needs
of the system. Regulators, manufacturers, dealers, property owners,
neighbors, and service providers all rely on a thorough start-up.
Before you start your system, please read this entire manual, as well as
the engineering plans, and contact your Dealer if you have any questions.
You’ll save yourself time and money, and you’ll reduce the potential for
follow-up work. For information specific to your system, refer to your
detailed engineering plans.
We recommend following the flow path through the treatment train,
if possible, when performing the system start-up, beginning at the
building outlets and ending at the final discharge point. By following this
start-up sequence, the treatment train can be effectively inspected for
proper operation and each step in the process can be given systematic
attention.
Roles and Responsibilities
Prior to start-up, the Orenco Representative or AdvanTex Dealer will
contact the Designer, Installer, and Service Provider to coordinate a start-
up date. The date will be based on a status report provided by the Orenco
Representative and the availability of all parties. The status report will
include, but will not be limited to, verification of leak testing performed
by the Installer, installation of all equipment, and the availability of power,
phone line, and water at the site.
• The AdvanTex Dealer is expected to be on site and is either
performing the start-up or acting as a coordinator and general
resource during the installation and start-up of the system.
• The Designer is required at the site during start-up to answer
questions concerning site-specific issues not covered in the plans,
timer settings, and float settings.
• The Installer is required at the site during start-up to address any
installation issues that arise.
• The Service Provider is required at the site during start-up to
become familiar with the system, receive training on control panel
and treatment system operation, and to learn correct sampling
techniques for the system.
Safety Precautions
Before starting up, maintaining, or servicing any wastewater treatment
system, observe the following precautions for the safety and health of all
service personnel working with or around wastewater, effluent, and its
associated equipment:
• Wear proper clothing that covers all parts of the body that will be
exposed to wastewater or effluent.
• Wear personal protection equipment (PPE) such as rubber gloves
and eye protection when handling or touching any equipment
components that come in contact with wastewater or effluent.
• Turn off system power at the service entrance panel and set the
circuit breakers in the panel to their “OFF” positions before removing
any system components. If the control panel or service entrance
panel is not within eyesight of the pumping system, use Lock Out/
Tag Out tags to ensure safety.
• Avoid driving over any part of the wastewater treatment system
unless it’s been equipped to withstand vehicle traffic. If the system is
subject to possible traffic, put a barricade up to protect the system.
• Do not enter any tank access. Any work performed on the tank
should be done from the outside. Gases and/or oxygen depletion in
the tank can be fatal.
• Secure all tank access lids properly to the riser after all work is
complete.
• Practice proper personal hygiene at all times.
Start-up & Operation

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AdvanTex® O&MMANUAL
COMMERCIAL TREATMENT SYSTEMS
Recommended Tools and
Equipment – Start-up
The following items are recommended for a smooth and successful
start-up:
• A tool kit containing common tools and these additional items:
– A cordless power drill with 1/2"nut driver and 3/16"hex-head bit
– Voltmeter
– Small electronics screwdrivers
– Wire strippers/cutters
– Cable ties
– Tape measure
– Adjustable pliers
• A laptop computer with Hyperterminal (PC) or ZTERM (MAC), to
interface with the control panel if the control panel doesn’t have a
touch screen.
• A copy of the layout and a start-up checklist for the person
performing the system start-up.
• Appropriate personal protection equipment (PPE) for each person
involved in the start-up.
Pre-start-up Inspection
• Site drainage: Verify that all riser lids, external splice box lids, and
AX pod lids are level and above grade.
• Serviceability: Verify that there is a minimum of two feet of space
between AX pods. Check for a useable water source within hose
distance of the system.
• System layout: Verify that the component layout in the plans or
the system diagram matches the installed system and note any
differences between the plans and the installed system.
• Landscaping: Check for landscape features that may cause long-
term maintenance issues:
– Trees planted on top of tanks
– Trees that could shed snow onto critical components,
such as control panels
– Risers, external splice boxes, and pods covered in bark or other
landscaping materials
• Circuit breakers:
Open the control
panel and verify
that all of the circuit
breakers are off.
• System access:
Remove lid bolts and
open all lids.
• AX100: Verify that
the lid bolt boxes
and pressure gauges
have been removed
from the AX pods. If
not, remove them at this time. Verify that the lateral inlet valves in
the pods are open and the spray nozzle turbines are pointed up, as
shown below.
Start-up & Operation (continued)

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Copyright Orenco Systems®, Inc. Property of Orenco Systems®, Inc. Do not reproduce or distribute without written authorization from Orenco: 800-348-9843. • AIM-OM-ATX-3, Rev. 2.1, 05/15
AdvanTex® O&MMANUAL
COMMERCIAL TREATMENT SYSTEMS
Inspection Points
Inspection Points – Control Panels
The system may have multiple control panels. Identify if there are control
panels on the section of the system that you are about to start-up.
If the tank or basin has associated controls, perform the following start-up
steps:
1. Panel documentation: Locate the panel-wiring diagram inside
the panel and verify the document matches the document number
found on the inside of the front panel door. If you can’t find the wiring
diagram, contact Orenco at [phone] or [phone] to
have a copy e-mailed or faxed to you.
2. Wiring installation:
Verify all of the main
breakers are in the
“OFF” position. Inspect
the wire terminations
in the panel by giving
a light tug to all of the
float wires, pump wires,
pump power lines, and
main power lines in the
panel. If a wire comes
loose, reattach the wire
correctly.
WARNING: Failure to identify a loose wire may cause
intermittent failures, inconsistent panel operation and over-
current conditions on the pumps.
3. Conduit seal installation: Check for conduit seals on all conduit
connections to the control panel.
WARNING: Failing to seal the conduit may allow corrosive gasses
to corrode major components. Orenco recommends conduit seals
for all connections to the control panel to assure proper system
operation and component longevity.
4. Power supply voltage: Make sure the panel breakers are switched
off, and check the power supply voltage at the panel.
• On 120 V panels, measure voltage between L1 and ground. The
voltage should be within ten percent of nominal.
• On 230 V panels, measure the voltage between L1 and ground,
and between L2 and ground. The voltage of each leg should be
approximately 115 volts. Measure the voltage between L1 and L2.
The voltage should be within ten percent of nominal.
• On 208 V, 230 V, and 460 V 3-phase panels, measure the voltage
between L1 & L2, L2 & L3, and L3 & L1. The voltage between
each leg should be 208, 230 or 460 volts, respectively. If there
is a voltage difference between line legs, it is an indication that
the power source may be undersized. The voltage between each
leg and ground on 208 volts should be approximately 120 volts.
The voltage between each leg and ground on 460 volts should be
approximately 277 volts. (Due to the variability in the ways 230 V,
3-phase power can be wired, there is not a standard test method.)
5. Neutral and ground voltage: Check for any voltage difference
between each neutral (N) wire in the panel and ground. If there is
a difference in voltage, use the wiring diagram to track down the
source of the difference and correct it.
6. Controls circuit: Connect the controls circuit if it is not already
connected. The controls circuit is now ready to be turned on. Do not
turn on the pump circuit at this time.
WARNING: Turning the pump circuit on at this time can damage the
panel or the pump if the pumps and floats are miswired or if there
isn’t sufficient liquid in the tank.
Panel documentation
Document number

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AdvanTex® O&MMANUAL
COMMERCIAL TREATMENT SYSTEMS
7. Panel operation: Verify that the panel is powered up.
• On TCOM and VCOM panels, an LED will light up indicating the
board is operational. If the blinking light does not turn on, refer
to the wiring diagram and verify the connections on the control
circuit were properly terminated.
• On MVP, Simplex, and Duplex panels, turn on the control circuit,
then toggle the pump “AUTO-OFF-MAN” switch to “MAN.” The
motor contactor will visibly and audibly engage at this point. If
the motor contactor does not engage and there are no alarm
conditions, refer to the wiring diagram and verify the connections
on the control circuit were properly terminated.
NOTE: For VCOM-equipped systems, place VCOM in test mode
at this point.
Inspection Points – Tanks and Basins
Not all tanks and basins have associated components as described below.
Check the system plans to identify if there are associated components —
such as splice boxes, floats, filters, or pump vaults — on each section of
the system as you start it up.
1. Tank: Confirm with the installer that all tanks have passed
watertightness testing. Verify the inlet and outlet of the tank and riser
are properly installed.
2. Basin: Verify the inlet and outlet of the basin are properly installed
and the effluent flows through in the correct direction.
3. Riser: Inspect the riser attachment and rubber grommets for a
watertight seal.
4. Splice box: Inspect
the splice box for
correct wiring and
the use of waterproof
splice nuts. If there is
water in the splice box,
use a baster or sponge
to remove the water.
WARNING: Failure to use waterproof wire nuts can cause
intermittent or permanent float failure.
5. Effluent filter and float: Verify the effluent filter cartridge and
float assembly are easy to remove for service and maintenance.
The ability to easily remove these components is essential and
depends upon careful installation in accordance with the instructions
provided in Appendix B. Set components on a plastic tarp or plastic
sheeting when they are out of the tank.
a. Detach the float assembly from the housing, remove it from the
tank, and lay it aside. Verify there is enough slack in the cord for
easy removal.
b. Pull the effluent filter cartridge out of the housing, and remove
it from the tank. There should be ample clearance to allow
unhindered removal of the cartridge from the housing and tank.
c. Slide the filter housing out of the slide rail and remove the housing
from the tank. (Slide rail models only.)
d. Raise the high-level alarm float to simulate a high-level condition.
Verify that the high-level signal is on by the audible alarm or the
high-level alarm input LED on the circuit board in the panel.
NOTE: The audible alarm is delayed for 2 hours in TCOM control
panels.
e. When the floats and filter cartridge are out of the tank, verify the
handles are long enough for easy access. If they are not, adjust
them to the necessary length.
f. Reinstall the cartridge into the effluent filter housing and install the
float assembly.
Inspection Points (continued)
Blinking LED

9
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AdvanTex® O&MMANUAL
COMMERCIAL TREATMENT SYSTEMS
Inspection Points (continued)
6. Biotube®pump vault filter and floats: Verify the pump vault
filter cartridge and float assembly are easy to remove for service
and maintenance. The ability to easily remove these components is
essential and depends upon careful installation in accordance with the
instructions provided in Appendix B. Set components on a plastic tarp
or sheeting when they are out of the tank.
a. Detach the float assembly from the housing, remove it from the
tank, and lay it aside. Verify there is enough slack in the cord for
easy removal.
b. Pull the filter cartridge out of the pump vault and remove the filter
cartridge from the tank. There should be ample clearance to allow
unhindered removal of the cartridge.
c. Test the floats,
starting with the
lowest float on the
assembly. Raise
each float to the
“up” position and
verify that the signal
is on for the correct
float by the audible
alarm and the alarm
input LED on the
circuit board in the panel. If your panel does not have alarm input
LEDs, check voltage coming into the panel from the float you
believe is activated.
NOTE: The audible
alarm is delayed for 2
hours in TCOM control
panels.
d. Check the float
settings provided in
the plans against the
actual float settings. If
the plans don’t provide
float settings and the
engineer or system designer is unable to provide settings, set the
floats based on the following rules:
• Demand Dose:
– “Redundant Off” (RO) float is set 3 inches (76 mm) above
the filter cartridge or the minimum liquid level of the pump,
whichever is higher.
– “Pump Off” float is set 2 inches (50 mm) above the “RO” float.
– To calculate the “Pump On” float distance from the “Pump
Off” float, divide the desired dose volume by the gallons per in.
or liters per mm of the tank. Place the “Pump On” float that
many inches above the “Pump Off” float.
– “High Level” or “High Level/Lag Pump Enable” float is set at
2 inches (50 mm) below the invert of the tank inlet.
• Timed Dose:
– “RO” float is set 3 inches
(76 mm) above the filter
cartridge.
– “Timer On/Off” float is
set 2 inches (50 mm)
above the “RO” float.
– “Override Timer” float
is set 3 inches (76 mm)
below “High Level” float.
– “High Level” or “High
Level/Lag Pump Enable”
float is set at 2 inches
(50 mm) below the invert
of the tank inlet.
WARNING: Pumps
have a 30-second
minimum run time.
We recommend a
drawdown differential
of at least 30 seconds
between the “Pump
Off” float and “RO”
float or the pumps
may continue to run,
resulting in a false low-
level alarm.
NOTE: If you use the general float settings, you may need
to return at a later time and adjust float settings after the
system is in operation.
2"
50 mm
3"
76 mm
Invert of
tank inlet
Filter cartridge
or minimum
liquid level
2"
50 mm
3"
76 mm
RO
Timer On/Off
Override Timer
High Level

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AdvanTex® O&MMANUAL
COMMERCIAL TREATMENT SYSTEMS
e. When the floats and filter cartridge are out of the tank, verify the
handles are long enough for easy access. If they are not, adjust
them to the necessary length.
f. Reinstall the cartridge in the pump vault. Leave the float assembly
out of the tank or basin for use during pump run testing.
7. Effluent pump: Verify the pump is easy to remove for service and
maintenance and that the pump flow rate and voltage are correct.
The ability to easily remove the pump is essential and depends upon
careful installation in accordance with the instructions provided in
Appendix B. Set components on a plastic tarp or plastic sheeting
when they are out of the tank.
a. Switch the pump breaker(s)
in the control panel to the
“OFF” position.
b. Verify the ball valve and
cam-lock fitting or union on
the discharge assembly is
within 24 inches (610 mm)
of the top of the riser.
c. Close the ball valve on
the discharge assembly if there is one and disconnect the
discharge assembly at the union or cam-lock fitting.
d. Verify there is enough slack in the pump cord for easy removal.
e. Pull the pump out of the vault by the discharge assembly and
remove the pump from the tank.
WARNING: Lifting or lowering the pump by the cord can
damage the pump and cord.
f. Check the voltage and phase values on the pump nameplate.
Write them down in the start-up report. If there are pump motor
stickers on the inside of the control panel door, check to see if
they match the pump nameplate.
WARNING: If the pump does not match the panel voltage and
phase requirements, do not turn on the pump breakers.
g. Reinstall the pump if the pump matches the panel voltage and
phase requirements.
h. Reconnect the discharge assembly at the union or cam-lock fitting
and open the discharge assembly ball valve.
i. Switch the pump breaker(s) in the control panel to the “ON” position
when finished.
Inspection Points – Pumps
When the panel has been inspected and powered up, the float inputs
have been tested, and all pump voltage and phase information has been
verified, the pump(s) can be powered up and tested.
1. Manual pump operation:
a. Switch the pump
breaker(s) in the control
panel to the “ON” position.
b. Measure the static
voltage of the pump(s)
and enter the value(s) on
the start-up checklist.
c. Toggle the pump
“AUTO-OFF-MAN” switch to “MAN.” The motor contactor will
visibly and audibly engage at this point. If the motor contactor
does not engage, check for an “RO” alarm condition. If there is
no alarm condition, refer to the wiring diagram and verify the
connections on the control circuit were properly terminated.
WARNING: There is no motor protection in TCOM panels and
panels without “RO” alarms. Before running a pump, always verify
that there is sufficient liquid in the tank or basin.
NOTE: Refer to the “General Operating Instructions” section of the
VCOM control panel documents to perform the “Manual Test” if
you are starting up a pump controlled by a VCOM panel.
d. Verify pump motor operation by checking the discharge plumbing
assembly for vibration.
– No vibration in the discharge plumbing assembly indicates a
pump wiring issue. Check the pump voltage and pump wiring
terminations in the panel and in the splice box. Wires may be
incorrectly terminated or wire insulation may be causing faulty
contact between the wire and terminal lug.
– Vibration in the discharge plumbing assembly with low or no
flow from the pump indicates closed valves or line breakages.
On duplex pumping systems with two discharge plumbing
assemblies connected together to a single line, verify that there
are check valves on both pumps and that they are operating
correctly. On three-phase systems, verify L1, L2 and L3 are
wired correctly. A quick way to identify if the pump is wired
correctly is to watch for clockwise torsion in the discharge
plumbing assembly when the pump is first turned on.
Inspection Points (continued)

11
Copyright Orenco Systems®, Inc. Property of Orenco Systems®, Inc. Do not reproduce or distribute without written authorization from Orenco: 800-348-9843. • AIM-OM-ATX-3, Rev. 2.1, 05/15
AdvanTex® O&MMANUAL
COMMERCIAL TREATMENT SYSTEMS
e. Measure and compare the dynamic (running) voltage of the pumps
to the measured static (resting) voltage. Voltage drops indicate
connection problems in the splice box or wiring that is too small for
the pump.
f. Use an ammeter to measure the pump amperage. Make sure
the amperage is within the range specified in the table below or
listed on the pump nameplate. For non-Orenco pumps, consult the
manufacturer’s literature.
NOTE: On TCOM panels with a current sensor option, pump
amperage should match the value listed in the panel. If it does not
match, inspect the three-position switch on the current sensor for
the correct scaling factor.
g. Set the high and low amperage ranges based on the reading.
Inspection Points (continued)
Pump Amperage Chart
Pump Model Low Amp
Reading
High Amp
Reading Pump Model Low Amp Reading
High Amp
Reading
PF100511 11.9 12.6 PF30503200 15.4 18.6
PF100512 6.0 6.4 PF500511 10.5 12.1
PF10053200 3.5 3.9 PF500512 5.4 6.2
PF100552 3.6 3.8 PF500532 2.6 3.0
PF100712 7.8 8.4 PF50053200 3.2 3.7
PF10073200 4.9 5.2 PF500534 1.3 1.5
PF100752 5.8 6.2 PF500552 3.3 3.9
PF101012 9.0 9.8 PF500712 7.3 8.5
PF10103200 5.1 5.6 PF500732 3.1 3.9
PF101552 9.4 11.4 PF50073200 3.9 4.9
PF102012 10.0 12.2 PF500734 1.4 1.8
PF102032 6.4 7.6 PF501012 8.8 10.1
PF10203200 7.5 8.7 PF50103200 4.6 5.7
PF200511 11.0 12.5 PF501034 1.8 2.2
PF200512 5.8 6.5 PF501512 9.6 12.6
PF200532 2.5 2.9 PF50153200 5.4 7.0
PF20053200 3.3 3.8 PF501552 8.0 9.1
PF201012 9.6 10.5 PF503012 12.6 17.7
PF300511 10.7 11.8 PF503032 8 10.4
PF20103200 5.0 5.9 PF50303200 10.1 13.1
PF20153200 6.0 7.2 PF503034 4.2 5.3
PF201512 10.5 12.6 PF505012 17.3 26.4
PF300512 5.6 6.2 PF505032 13.1 16.5
PF30053200 3.3 3.7 PF751512 11.4 12.3
PF300552 3.5 4.2
PF300712 7.4 8.6 P200511 12.6 13.8
PF300752 5.5 6.1 P200512 6.1 7.1
PF30073200 4.1 4.9 P201512 11.2 12.2
PF301012 9.3 10.4 P300512 5.8 6.5
PF301052 6.4 7.4 P300712 7.4 8.3
PF30103200 4.9 5.8 P301012 9.1 10.3
PF301512 10.1 12.6 P500511 11.2 12.7
PF30153200 5.5 6.9 P500512 5.8 6.5
PF301534 2.3 2.8 P50053200 3.4 3.8
PF301552 8.1 9.3 P500712 7.7 8.8
PF302012 7.4 11.0 P50073200 3.8 4.8
PF30203200 7.7 9.3 P501012 9.4 11.2
PF303012 12.6 16.8 P501512 10.6 13.1
PF303032 8.2 10.1 P50153200 6.0 7.6
PF305012 20.1 25.8
PF305032 14.0 16.6 PEF3311 6.9 7.8

12
AIM-OM-ATX-3, Rev. 2.1, 05/15 • Copyright Orenco Systems®, Inc. Property of Orenco Systems®, Inc. Do not reproduce or distribute without written authorization from Orenco: 800-348-9843.
AdvanTex® O&MMANUAL
COMMERCIAL TREATMENT SYSTEMS
2. Drawdown test: Perform a drawdown test to set the pump flow
rate in the control panel.
a. Measure and record the distance from the top of the tank to the
liquid level in the tank.
b. Toggle the pump “AUTO-OFF-MAN” switch to the “MAN” position
for sixty seconds.
c. Toggle the pump “AUTO-OFF-MAN” switch to the “OFF” position;
then measure and compare the difference in elevations. The
difference in elevation in inches or millimeters, multiplied by the
gallons per inch or liters per millimeter of the tank or basin will
provide the correct flow rate in gallons per minute (gpm) or liters
per minute (L/min). Follow the instructions provided with the control
panel for entering the measured pump flow rate.
NOTE: This method will not work on recirculation/blend tanks if
the flow is returning to the tank through the recirc valve or for
dose tanks with transport lines that drain back.
3. Automatic pump operation: Test the system using the floats to
drive pump operation.
• Demand dose:
a. Toggle the “AUTO-OFF-MAN” switch to the “AUTO” position.
b. Unclip the float assembly and remove it from the tank if it is not
out already.
c. Verify the automatic operation of the pumps by incrementally
lifting the floats to simulate normal raising and lowering of the
tank liquid level. The pumps should cycle on when you lift them
and cycle off when you release them. On duplex systems, the
pumps should alternate between lead and lag pumps and cycle
off when the floats are dropped.
NOTE: An “On/Off” float works differently than a pair of “On” and
“Off” floats. Verify the type of floats in your system before testing.
d. Lower the float assembly into the tank and clip the float
assembly into the float bracket.
• Timed dose:
a. Toggle the “AUTO-OFF-MAN” switch to the “AUTO” position.
b. Record the timer settings, then reduce the timer settings to 0.5
minutes “OFF,” 0.5 minutes “ON,” and 1.0 minutes “OVR OFF.”
c. Let the pump run through several cycles to confirm that the
timers are operating correctly.
d. Change the timer settings back to the settings specified by the
engineer.
Inspection Points –
System Timer Settings
1. Recirc Timer Settings: The method for calculating Recirculation/
Blend Tank timer settings is provided below. Newer AX100 panels
have the ability to adjust the timer setting based on actual flow
data. See the instructions included with the control panel for setting
information.
• Pump On Time = 1.5 Minutes
NOTE: The standard Pump On Time for AX100 units is 1.5
minutes. Your system’s needs may differ. Consult your site
plans, engineer/designer, or Orenco for more details.
• Pump Off time = (1440 ÷ Cycles per Day) - Pump On Time
Calculate Cycles per Day using the equation below:
NOTES:
- 1440 is the number of available minutes in a 24-hour period.
- The standard Recirc Ratio for AX100 units is 4 but it can
range from 2 to 6, depending on the needs of the system.
- The Pump Flow Rate is 48 gallons per minute (3 L/sec) when
nozzle pressure measures 3.0 psi (20.6 kPa).
2. Discharge Timer Settings (Timed Dose Systems) : The timer
settings for the system are calculated based on the actual and
expected flow. Equations are provided below.
a. Identify Dose Volume
• Dose Volume = Number of gallons desired per dose
or
• Dose Volume = (Number of Orifices) × (Loading Rate per Orifice)
b. Identify Doses per Day
• Number of doses per day = (Design Flow) ÷ (Dose Volume)
c. Identify Time Interval Between Starts, in hours
• Time Interval Between Starts = (Hours per Day) ÷ (Doses per Day)
d. Identify Time On, in minutes
• Time On = (Dose Volume) ÷ (Measured Pump gpm)
Inspection Points (continued)
(Average Daily Flow) × (Recirc Ratio)
(Pump Flow Rate) × (Pumps per Dose) × (Pump On Time)

13
Copyright Orenco Systems®, Inc. Property of Orenco Systems®, Inc. Do not reproduce or distribute without written authorization from Orenco: 800-348-9843. • AIM-OM-ATX-3, Rev. 2.1, 05/15
AdvanTex® O&MMANUAL
COMMERCIAL TREATMENT SYSTEMS
Inspection Points (continued)
Inspection Points – Recirculation/
Blend Tank
Complete all of the inspections and checks described in the “Inspection
Points – Tanks and Basins” section of this manual and then verify that the
inspection points below are as follows:
1. Recirc valve: Verify the recirc valve is set so that the maximum
water level in the tank matches the maximum liquid level as
specified by the engineer. If the maximum liquid level is not on the
plans, a general rule is to set it at 80% of the tank depth for straight-
walled tanks or 80% of tank volume for curve-walled tanks.
2. Stinger length: Adjust the length of the recirc valve stinger based
on installation instructions.
a. Calculate the necessary
stinger length adjustment
using the equation (A+B)-16"
or (A+B)-406 mm, where A
is the distance from the MM
valve invert to the top of the
tank and B is the distance
from the top of the tank to the
100% discharge level. If the
stinger needs to be lengthened
to near or beyond the length
of the cage, the cage will also
need lengthening.
b. Stinger Adjustment Dimensions:
• A = Distance from invert of MM valve to top of tank
• B = Distance from top of tank to the liquid level where 100%
bypass is desired, typically 80% of the tank’s volume
• C = Standard cage length: MM4 49 inches (1245 mm), fits
stingers up to 36 inches (914 mm); MM6 57 inches (1448
mm), fits stingers up to 40 inches (1016 mm)
• D = Middle of ball (at the 100% discharge level)
NOTE: There should be a minimum of 9 inches (229 mm) from the
normal liquid level to the “RO” float.
Inspection Points –
AdvanTex®Filter Pods
Your system may include AX100 filter pods (shown) or AX20 filter pods.
For AX20 inspection points, see the residential Installation Manual and
residential AdvanTex O&M Manual, provided in Appendix B.
1. Installation
inspection: Verify
the AX100 pod
has been properly
installed. Improper
installation is
usually indicated by
the conditions listed
below:
• Sidewall bowing — Check for any sidewall bowing in the pod. The
bowing may cause excessive spacing between media sheets. If
the spacing between the media sheets exceeds ½-inch (13 mm),
cut the fiberglass rods for the correct media sheet spacing.
• Lid misalignment — Lid bolts will only go into the holes if the lid
is lifted slightly and the bolts are partially inserted prior to closing
the lid.
2. Manifolds and Laterals: Flush the manifolds and laterals. See the
AX100 Treatment Systems Installation Manual and Field Maintenance
Report Form in
Appendix B for more information.
For proper operation after flushing the manifolds and laterals, turn
the ball valves to their correct positions and turn the spray nozzle
turbines to point down.
3. System Pressure: Verify the pressure
gauge is set to zero. If it is not, open
the seal at the top and let the pressure
equalize with atmosphere. Install the
pressure gauge, turn on the recirc
pumps, and set to 3.0 psi (20.6 kPa).
NOTE: On systems plumbed in parallel, adjust the pressure in
all three pods at the same time to 3.0 psi (20.6 kPa) using the
gate valve on the pod manifold.
4. Pod drainage: Verify that the pod drains easily. If the pod does not
drain, check to see if the shipping plug has been removed from the
pod outlet.
5. Lid bolt installation: When you have finished inspecting all pods,
remove the pressure gauge and secure the lids on the pods with the
included lid bolts.
B
A
Seated
stinger
cone
Stinger
Cage
C
D

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AIM-OM-ATX-3, Rev. 2.1, 05/15 • Copyright Orenco Systems®, Inc. Property of Orenco Systems®, Inc. Do not reproduce or distribute without written authorization from Orenco: 800-348-9843.
AdvanTex® O&MMANUAL
COMMERCIAL TREATMENT SYSTEMS
Inspection Points – Vent Fan Assembly
A current sensor monitors
the vent fan operation. If
the fan fails, this sensor
will open and activate
an alarm. Some vent fan
assemblies are equipped
with optional heater units
for reliable performance in
cold weather. Check your
system plans to determine if your vent fan assembly includes a heater.
1. Current sensor operation: To test the current sensor, switch off
the power to the fan and verify the visual alarm on the control panel
is activated.
NOTE: TCOM control panels have a 12-hour delay in the audible
alarm for the current sensor.
2. Optional heater unit: There are two types of heater unit controls
available for vent fan assemblies: a single set-point style and a
multiple set-point style. If your system is equipped with an optional
heater unit, check your system plans to determine the type of heater
included in the vent fan assembly.
• Single set point — Locate the heater inside the vent fan assembly
enclosure, remove the heater cover in the vent fan assembly, and
set the thermostat to 43° F (6° C).
• Multiple set points — In the control panel, set the “Heater On”
point at 35° F (1.6 °C), “Heater Off” point to 45°F (7.2 °C), “Fan
On” point to 35°F (1.6 °C), and “Fan Off” point to 25°F (-3.8 °C).
Inspection Points – Distribution Valve
To verify that the distribution valve is operational, the valve must be
hydraulically loaded with the conditions under which it will operate. Use the
system plans to find the location of all distribution valves in the system.
1. Verify liquid level: Make sure that the tank or basin that you are
pumping from has sufficient liquid to perform the test.
WARNING: There is no motor protection in TCOM panels and
panels without “RO” alarms. Before running a pump, always
verify that there is sufficient liquid in the tank or basin.
2. Turn on pump: Toggle the “AUTO-OFF-MAN” switch for the pump
that pressurizes the distribution valve to “MAN.”
3. Leak inspection: Once
the distribution valve is
pressurized, inspect the
unions on the distribution
valve for leaks. Tighten any
unions that are leaking.
4. Operation inspection:
Open and close the ball valve
to test the operation of the
distribution valve.
• When the valve is closed and opened, the flow should transition
from one leg of the valve to another. Observe the clear section of
the leg to verify this transition. There may be flow in more than
one leg, but there should only be full flow in one leg at any time.
• When the ball valve is fully closed, the system will fully pressurize
(deadhead condition). Incorrectly installed connections in the line
may separate and require reinstallation before testing can be
completed.
• If the distribution valve does not rotate correctly, open the
distribution valve and inspect for debris or breakage. If the
problem is not a mechanical issue, review the plans for potential
installation issues, including elevation.
Housekeeping
1. Verify that all control panels are turned on and all “AUTO-OFF-MAN”
switches are toggled to “AUTO.”
2. Close all control panels.
3. Close and bolt down all tank access lids and riser lids.
WARNING: AN UNBOLTED RISER LID OR OPEN TANK IS A
SAFETY HAZARD! Tank and riser access lids must be properly
secured at all times. If bolts are lost or damaged, contact Orenco
immediately for replacements.
4. Police the area for
debris and tools.
Inspection Points (continued)

15
Copyright Orenco Systems®, Inc. Property of Orenco Systems®, Inc. Do not reproduce or distribute without written authorization from Orenco: 800-348-9843. • AIM-OM-ATX-3, Rev. 2.1, 05/15
AdvanTex® O&MMANUAL
COMMERCIAL TREATMENT SYSTEMS
Maintenance
Tools, Equipment, and Spare Parts List
Many of the recommended maintenance and troubleshooting procedures
require specialized tools, equipment, and spare parts. Refer to the
residential AdvanTex O&M Manual, provided in Appendix B, for a list of
items to have on hand.
Record Keeping
Maintain a written log
describing all activities
relating to the AdvanTex
system. This information is
very valuable for analysis
and trouble shooting if
problems should occur. A
Field Service Report Form
and a Field Maintenance Report Form are provided in Appendix B for
your convenience.
Maintenance Equipment
Safety and Hygiene
• Bleach/water solution
• Eye protection
• Hand cleanser
• Paper towels
• Plastic tarp
• Protective clothing
• Rags
• Rubber gloves
• Trash bags
Routine Inspection and Maintenance
• Biotube®filter cradle (OM-BIOTUBECRADLE)
• Beakers or bottles
• Calculator
• Channel lock pliers
• Dissolved oxygen (DO) meter or colorimetric ampoules
• 3/16"hex head drill bit
• Drill
• Electrical tester (voltage and amperage)
• Extension cord
• Extra lid bolts
• Laptop with null modem cable (TCOM & VCOM only)
• Hook for raising floats to test them
• pH meter or pH test strips
• Pressure gauge
• Sample bottles
• Sludge and scum measuring device (e.g. Nasco Sludge Judge®) for
sludge and Orenco SMUG for scum
• Tape measure
• Telephone for testing dial tone – (TCOM & VCOM only)
• Test strips for nitrate, ammonia, alkalinity
• Turbidity meter
• Watch or stopwatch
Repairs
• Adhesive
• Backflow prevention device
• Extension cord
• Flashlight with spare batteries/bulb
• Float switches
• Hacksaw with spare blades
• Hammer
• Hand tools
• Heat gun (torch)
• Hole saw (vari-bits: 3/4"and 1-3/8")
• Hose with nozzle
• Inspection mirror (e.g. Prototek™ “Mirror on a Stick”)
• PVC cement and primer
• PVC fittings
• PVC pipe
• Screwdriver set
• Shovel Snake (building sewer)
• Spare parts for downstream components
• Waterproof wire nuts
• Wire stripping/crimping tool (10 to 22 AWG)
• Wrench (24"or 600 mm pipe wrench)
• Wrench (lid bolt)

16
AIM-OM-ATX-3, Rev. 2.1, 05/15 • Copyright Orenco Systems®, Inc. Property of Orenco Systems®, Inc. Do not reproduce or distribute without written authorization from Orenco: 800-348-9843.
AdvanTex® O&MMANUAL
COMMERCIAL TREATMENT SYSTEMS
Preventive Maintenance
As with any engineered system, such as a car or heat pump, your
wastewater treatment system will work better and last longer if it is
regularly maintained by a qualified service provider. The service provider
should be present during installation, so he or she is familiar with the
system, especially those service lines, conduits, and connections that get
buried.
Your system will work better and last longer if you learn what not to
put into the treatment system. There should be no disposal of toxics or
chemicals into the system, such as restaurant degreasers, cleansers, wax
strippers for linoleum, carpet shampoo and its waste products, and other
toxics. As a general rule, nothing should go into any wastewater treatment
system that hasn’t been ingested, other than toilet tissue, mild detergents,
and wash water. Every system user and qualified service provider should
be familiar with the basic guidelines below:
• No septic additives
• No flammable or toxic products
• No excessive use of household cleaners or chlorine bleach
• No pool or spa products
• No disposing of pharmaceuticals
• No pesticides, herbicides, or agricultural chemicals or fertilizers
• No RV waste (unless the system is specifically designed and
engineered to treat such waste)
• No surface runoff and storm water
• No excessive amounts of fats, oils and grease (FOG)
• No food byproducts
• No cigarette butts
• No paper towels, newspapers, sanitary napkins, diapers, disposable
wipes, floss, gum or candy wrappers, etc.
• No chlorides or water softener backwash
Preventive maintenance should start with facility user and/or homeowner
education. Orenco Systems®, Inc. can provide a manual of Do’s and
Don’ts to distribute upon request. To request multiple copies of this
manual, contact Orenco Systems, Inc. at 1-800-348-9843.
With preventive maintenance and periodic inspections, the wastewater
treatment system will function for decades.
Scheduled Maintenance
Scheduled maintenance should be performed in the time frames described
in this section. A chart showing scheduled maintenance activities and times
is included at the end of this section, for your convenience.
Monthly Maintenance
Once a month, during the first year of operation, make a visual inspection
of the liquid levels in the septic, recirculation/blend, and dosing tanks. The
liquid level should never be lower than the “Redundant Off” float. If liquid
leaks out of the tank, the scum layer can drop to the level of the perimeter
holes in the pump vaults and cause the screen to plug. A watertight tank is
important and any leakage must be corrected.
During the first year of operation, check the Biotube®filter in the septic tank
every month and clean when necessary. Follow the applicable instructions
found in Appendix B for cleaning Biotube filters.
Once a month, during the first year of operation, the Biotube Pump
Vaults should be examined to determine if cleaning of the Biotube filter is
necessary. If the liquid level inside the vault is discernibly different from the
level outside the pump vault while the pump is running, cleaning is required.
Remove the filter cartridge and clean it following the applicable instructions
in Appendix B.
Once a month, read the hour meters and event counters for the
recirculating/blend and dosing tank’s pumps. Each pump should run
approximately the same number of hours and turn on approximately the
same number of times as their operating counterpart. If the run times or
cycle times differ significantly between pumps, determine the cause of the
discrepancy and take corrective measures.
If there is a distributing valve, manually cycle the valve through every outlet
to confirm proper operation.
Maintenance (continued)
Scum Layer
Slope Ground Away from Riser
Effluent
Discharge
Biotube Pump
Vault
Inlet Tee
Clear Zone
Sludge Layer

17
Copyright Orenco Systems®, Inc. Property of Orenco Systems®, Inc. Do not reproduce or distribute without written authorization from Orenco: 800-348-9843. • AIM-OM-ATX-3, Rev. 2.1, 05/15
AdvanTex® O&MMANUAL
COMMERCIAL TREATMENT SYSTEMS
Maintenance (continued)
Quarterly Maintenance
Testing for Biochemical Oxygen Demand (BOD5); Total Suspended Solids
(TSS); Fats, Oils, and Grease (FOG); Ammonia (NH3); Nitrate (NO3); and
pH should be done according to regulatory requirements. If testing is
not required by the regulatory jurisdiction, samples should be taken
quarterly for the first year to establish a baseline. Subsequent testing
after the first year may be reduced based on the establishment of this
baseline. Regular samples will provide valuable information for ongoing
maintenance and troubleshooting. Effluent testing procedures may be
found in the residential AdvanTex O&M Manual in Appendix B. All results
obtained should be reported to the appropriate people, including Orenco’s
Engineered Systems Department.
For the first year only, check voltages and amperages of all pumps and
record them on the Field Maintenance Report Form provided in Appendix
B. Refer to the start-up voltages and amperages recorded in the “Start-
up & Operation” section of this document. If the voltage drop or the
amperage exceeds National Electric Code (NEC) requirements (see chart
provided in “Inspection Points —Pumps” section of this document), have
an electrician verify the service line and check the pump windings. If there
is no discernible difference in voltage or amperage, this procedure may be
performed annually.
Semi-Annual Maintenance
Inspect the spray of the
nozzles in the AdvanTex
pods. Look for reduced
or uneven spray patterns
as well as clogged spray
nozzles or biological
growth on the spray
nozzles. Observe and
measure the residual
pressure. Refer back to
the Start-up & Operation
section for initial
measurements of residual pressure. If the observed residual pressure
exceeds the initial residual pressure (3 psi) more than 15-20%, it can be
assumed that some of the nozzles are plugged and the laterals require
flushing. To flush the laterals, open the ball valves at the end of one lateral.
At the control panel, toggle the “AUTO-OFF-MAN” switch to “MAN” and let
the pump run to flush any material from the lateral. Repeat for each lateral
until all of the laterals have been flushed. Recheck the residual pressure
to ensure the laterals have been sufficiently cleared.
If there is still a significant difference in initial and current residual
pressure, use an Orenco AX lateral cleaning brush or a high-pressure
washer to clean the laterals.
To clean out the spray nozzles, turning the laterals so the spray nozzle
turbines are pointed up and then hosing each turbine off. For excessive
buildup in the spray nozzles, remove the nozzles and replace them with
clean nozzles. Soak the plugged nozzle in TSP or any other approved
cleaning agent for 30 minutes. When a spray nozzle is clear, you can
see the spray nozzle turbine spin freely and the spray distribute evenly
across the textile media. If the nozzles are substantially plugged after six
months, then it may be prudent to inspect the residual pressure every
three months and adjust scheduled testing and flushing of the laterals
accordingly.
Visually inspect the recirculating valve and verify that the liquid level in
the tank is within the normal range. Consult the design plans for proper
operating level. If the liquid level is low, the ball mechanism could be
jammed in the seated position. Remove, disassemble, and inspect. If the
liquid level is high, the valve may require cleaning because it is not making
a tight seal when seated. Remove, disassemble, and inspect.

18
AIM-OM-ATX-3, Rev. 2.1, 05/15 • Copyright Orenco Systems®, Inc. Property of Orenco Systems®, Inc. Do not reproduce or distribute without written authorization from Orenco: 800-348-9843.
AdvanTex® O&MMANUAL
COMMERCIAL TREATMENT SYSTEMS
Annual Maintenance
Measure the scum and sludge accumulation in all tanks annually. Record
scum and sludge measurements on a Field Maintenance Report Form.
1. Measuring the scum layer: Using a scum utility measuring
gauge or similar tool, measure the thickness of the scum layer.
With this measurement, determine if the distance from the bottom
of the scum layer at the liquid’s lowest normal level to the bottom
of the outlet tee or to the top of the inlet holes for the pump vault is
3 inches (76 mm) or less. If so, it’s time to pump out the contents
from the tank (scum, sludge, and liquid) completely. After removing
the septage contents from the tank, refill it with water to its normal
operating level.
2. Measuring the sludge layer: Using a Sludge Judge®or
similar tool, measure the thickness of the sludge layer. With this
measurement, determine if the distance from the top surface of the
sludge to the bottom of the outlet tee or inlet holes for the pump
vault (PVU) is 6 inches
(152 mm) or less. If so,
again, it’s time to pump out
the contents from the tank
(scum, sludge, and liquid)
completely. If the tank is
fitted with a pump vault
or effluent filter discharge
assembly, take the
measurement from the top
surface of the sludge layer
to the bottom of the vault’s
inlet ports. After removing
the septage from the tank,
refill it with water to its
normal operating level.
NOTE: Turn the laterals in the AdvanTex®treatment unit 180 degrees
(so the spray nozzle turbines face up) prior to flushing to prevent
nozzle clogging while material is being pushed along the lateral to
the flushing valve.
Once a year, send copies of the complete activity log to the appropriate
person. This information is very valuable for analysis and troubleshooting if
problems should occur.
Check voltages and amperages of all pumps and record them on a Field
Maintenance Report Form. Refer to the start-up voltages and amperages
recorded in the “Start-up & Operation” section of this document. If the
voltage drop or amperage exceeds NEC requirements, have an electrician
verify the service line and check pump windings.
The pumping system should be inspected annually to ensure it is
operating properly. Unscrew the stainless steel bolts that fasten the
fiberglass lid over the pumping equipment. Remove the fiberglass lid for
an inspection that includes these steps:
a. Verify there are no obvious holes or leaks in the riser or around the
perimeter of the riser connection to the tank. Wetness or watermarks
may be an indication of weeping.
b. Inspect the splice box to ensure it is free of water. Ensure the lid and
connections are secure.
c. Verify the floats are in good condition and properly secured to the
float tree. Verify the float cords are neatly wrapped inside the riser so
that they cannot interfere with the operation of the floats.
d. Verify float operation. Refer to the float tests in the “Start-up &
Operation” section of this document.
All TCOM control panels contain a lithium battery for backup. For good
measure, we recommend you replace the battery every two years. Refer
to “Battery Replacement” in the Custom TCOM Control Panels and
HyperTerminal Access Manual, provided in Appendix F.
Maintenance (continued)

19
Copyright Orenco Systems®, Inc. Property of Orenco Systems®, Inc. Do not reproduce or distribute without written authorization from Orenco: 800-348-9843. • AIM-OM-ATX-3, Rev. 2.1, 05/15
AdvanTex® O&MMANUAL
COMMERCIAL TREATMENT SYSTEMS
Scheduled Maintenance Reference Chart
NOTE: All designer specifications and local regulatory requirements
should be followed. This table provides Orenco’s minimum recommended
guidelines.
Maintenance (continued)
1 This maintenance schedule is only required during the first year of system operation.
2Recommended guidelines only. Sampling should be scheduled according to regulatory requirements.
Scheduled Maintenance Reference Chart Recommended Activity Period
Activity
Visual Inspection of Tank Liquid Levels • 1•
Check Biotube®Effluent Filters; Clean as Required • 1•
Check Biotube®Pump Vault Filters; Clean as Required • 1•
Record Elapsed Time Meters and Event Counters for All Pumps •
Confirm Proper Operation of Automatic Distributing Valve (if applicable) •
Sample Influent and Effluent Quality Parameters2• 1•
Confirm and Record Pump Voltages and Amperages • 1•
Inspect Distribution of Effluent in AdvanTex Pods; Clean as Required •
Measure Inlet or Residual Pressures to AdvanTex Pods; Clean as Required •
Inspect Recirculating Valve •
Record Scum and Sludge Accumulation in Tanks •
Flush Distribution Laterals in AdvanTex Pods •
Inspect Pumping System Components; Clean as Required •
Replace Lithium Battery in TCOM Control Panel (if applicable) •
Monthly
Quarterly
Semi-annually
Annually
Biannually

20
AIM-OM-ATX-3, Rev. 2.1, 05/15 • Copyright Orenco Systems®, Inc. Property of Orenco Systems®, Inc. Do not reproduce or distribute without written authorization from Orenco: 800-348-9843.
AdvanTex® O&MMANUAL
COMMERCIAL TREATMENT SYSTEMS
Maintenance (continued)
Corrective Maintenance
An alarm is triggered when the liquid in the tank reaches a level that
is either higher or lower than it should be, under normal operating
conditions.
When responding to an alarm, first discern the type of alarm being
activated. If it is due to pump failure, test each pump manually and locate
the failed pump. To replace the pump, see the “Removing & Replacing
Inoperative Pumps” section of this document. Remove the access riser lid
and visually inspect the liquid level. If a high liquid level or low liquid level
has caused the alarm, follow the appropriate procedures below.
High Liquid Level Alarm
1. Determine if the high water alarm is from higher than expected
usage (i.e., special event, etc.). If there is a long-term increase in
flows, then timer settings need to be adjusted accordingly.
2. When a high liquid level condition exists, the source of the problem is
likely to be one of the following:
a. Poor valve seal – Consult the design plans for proper operating
level and visually inspect the recirculating valve to verify the liquid
level in the tank is within the normal range. If the liquid level is
high, the valve may require cleaning because it is not making a
tight seal when seated. Remove, disassemble, and inspect.
b. Control panel breakers tripped – Check the circuit breakers,
switches, and fuses in the system control panel. If separate
breakers in the main panel were used for the pumps and controls,
also check these breakers. If a breaker is found to be tripped,
reset the breaker. If the breaker trips immediately, check the
wiring for a short or bad breaker. If the breaker or breakers don’t
trip again, then the problem has probably been found or has
corrected itself. Test the automatic function of the system as
shown in the “Start-up & Operation” section of this manual to
verify proper operation.
c. Faulty floats – If, after checking the circuit breakers, fuses, and
switches, the pump still does not operate, toggle the “AUTO-
OFF-MAN” switch to “MAN.” If the pump engages, the problem
is likely to be in the float system. (If the motor contactor engages
but the pump doesn’t run, go to step g, “Water in splice box or
loose wires.”) Pump the tank down to a level below the “Override
Timer On/Off” float. Cycle the pump to simulate the timer on
and off periods so the effluent is dosed to different zones of
the AdvanTex®system. Toggle the “AUTO-OFF-MAN” switch to
“AUTO.” Do not leave a pump in the “MAN” position unattended. If
you do, the pump can continue to operate without liquid, possibly
drawing solids into the filter and causing potential failures. Isolate
the float switches and check to ensure all floats are operating
properly. If a float is found to be faulty, refer to the “Removing &
Replacing Inoperative Floats” section in this document.
IMPORTANT! Before doing any work on either the wiring to
the level control floats and pump or inside the pump control
panel, switch off the power to the system at the service
entrance panel and set the circuit breakers in the panel to
their “OFF” positions.
d. Pump clogged or not clean – Check the pump for discharge
flow. Close the ball valve, disconnect the union in the discharge
plumbing assembly and turn the union so it is facing down.
Engage the pump and visually inspect the approximate flow
rate being discharged. If you are unsure of the discharge rate,
measure the time it takes to fill a five-gallon bucket with the
discharge. Check this value against the appropriate pump curve.
If the flow rate is insufficient, the pump may need to be cleaned.
Refer to the Pump Repair Manual provided in Appendix D.
e. Valves closed – If the pump operates in the proper flow range,
check all downstream valves to ensure that they are in the open
position. If the valves are all open, test the discharge pressure of
the pump. For proper pump testing methods, refer to the Pump
Repair Manual provided in Appendix D.