BIO-MICROBICS SeptiTech STAAR 1.2 User manual

Operation and Maintenance Manual
SeptiTech Wastewater Pretreatment System
Commercial Processor Units
STAAR 1.2 / STAAR 1.5 / STAAR 3.0 / STAAR 4.5
Updated: 9-8-14
SeptiTech, 69 Holland Street, Lewiston, Maine 04240
P: 207-333-6940 / F: 207-333-6944 / www.septitech.com / [email protected]

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Table of Contents
1. INTRODUCTION.................................................................................................................................................4
2. TREATMENT SYSTEM DESIGN AND OPERATING THEORY.................................................................4
3. TREATMENT LOOP DESCRIPTION..............................................................................................................5
3.1. RECIRCULATION LOOP ..................................................................................................................................5
3.2. DENITE MIX LOOP (OPTIONAL CONFIGURATION).........................................................................................6
3.3. DISCHARGE LOOP..........................................................................................................................................7
4. SLUDGE RETURN LOOP ................................................................................................................................8
5. ALARM CONTROL LOOP................................................................................................................................8
6. SYSTEM COMPONENTS.................................................................................................................................9
6.1. CONCRETE TANK...........................................................................................................................................9
6.2. PIPING &FITTINGS ........................................................................................................................................9
6.3. MEDIA ............................................................................................................................................................9
6.4. DISINFECTION (OPTIONAL)..........................................................................................................................10
6.5. PUMPS .........................................................................................................................................................11
6.6. FLOAT SWITCHES........................................................................................................................................13
7. ALARMS AND TROUBLESHOOTING.........................................................................................................13
7.1. TROUBLESHOOTING GUIDE:FREQUENTLY ASKED QUESTIONS/PROBLEMS.............................................14
8. O&M AGREEMENTS / CHECKLIST / MAINTENANCE SCHEDULE.....................................................18
9. MAINTENANCE SCHEDULE.........................................................................................................................21
9.1. RESIDUAL REMOVAL....................................................................................................................................23
9.2. VISUAL EVALUATION TECHNIQUES..............................................................................................................24
10. EVALUATION OF EFFLUENT & MIXED LIQUOR.................................................................................29
10.1. VISUAL EVALUATION................................................................................................................................29
10.2. OLFACTORY EVALUATION........................................................................................................................30
11. SAMPLING PROTOCOL.............................................................................................................................31
11.1. NON-UV SYSTEMS..................................................................................................................................31
11.2. UV SYSTEMS...........................................................................................................................................32
12. SEPTITECH WARRANTY AGREEMENT................................................................................................35

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List of Tables
Table 1: SeptiTech Processor Treatment Capacities.............................................................................4
Table 2: SeptiTech Concrete Tank Information ......................................................................................9
Table 3: SeptiTech Standard Pumps......................................................................................................12
Table 4: Alarm Descriptions and Troubleshooting ..............................................................................13
Table 5: SeptiTech Systems Maintenance Schedule ...........................................................................21
List of Figures
Figure 1: SeptiTech Denitrification Process Description ......................................................................7
Figure 2: SeptiTech Plastic Media..........................................................................................................10
Figure 3: SeptiTech Polystyrene Bead Media.......................................................................................10
Figure 4: Sanitron Ultraviolet Water Purifier.........................................................................................11
Figure 5: Emperor Aquatics (Smart HO UV Sterilizer) .........................................................................11
Figure 6: Tsurumi VANCS Series Submersible Pump (Typical)..........................................................12
Figure 7: Recirculating Pump & Spray Header.....................................................................................24
Figure 8: Typical Spray Nozzle Spray Pattern.......................................................................................25
Figure 9: Discharge Pump Assembly ....................................................................................................26
Figure 10: Processor Inlet Pipe ..............................................................................................................27
Figure 11: Mechanical Floats..................................................................................................................28
Figure 12: Media Bags.............................................................................................................................29
Figure 13: SeptiTech Effluent Example .................................................................................................30

1. Introduction
This document describes the operation process and maintenance procedures used to control and
maintain operation of the SeptiTech Wastewater Pretreatment System.
The SeptiTech pretreatment unit is comprised of a concrete tank, pumps, media, and required
process piping. Each processor is controlled by a programmable logic controller (PLC), which
can control the processor automatically or manually through the use of an operator interface
terminal (OIT).
Operation of the processor can be divided into two process loops:
The Treatment Loop –controls treatment of wastewater through operation of
recirculation pumps that circulate water through the media in the processor tanks and
operation of discharge pumps that discharge the treated wastewater to the disposal
system.
The Sludge Return Loop –periodically pumps solids produced by the SeptiTech
treatment process back to the primary tank(s) for settling that are situated immediately
upstream of the SeptiTech treatment unit.
In addition to the two process control loops, there is an alarm control loop that detects
abnormalities and/or faults in the process loops and triggers an alarm sequence that notifies both
the operator via audible and visual alarms and SeptiTech’s on-call service department via a
remote monitoring telemetry system.
2. Treatment System Design and Operating Theory
SeptiTech uses an enhanced recirculating biological trickling filter system in a treatment process
that is optimized to remove a high percentage of BOD, TSS, and nitrogen from wastewater
through an aerobic treatment process. The SeptiTech processor is added to a conventional system
between the septic tank and disposal system (typically a leach field). The treatment capacities of
each of the SeptiTech Commercial models are shown in the table below.
Table 1: SeptiTech Processor Treatment Capacities
Processor Model
Tank Capacity*
Avg. Treatment Capacity
STAAR 1.2
2,000 gal
1,200 gpd
STAAR 1.5
4,000 gal
1,500 gpd
STAAR 3.0
6,000 gal
3000 gpd
STAAR 4.5
8,000 gal
4,500 gpd
*Tank capacities and dimensions may vary depending on State codes and regulations
The SeptiTech processor model required depends on several factors:
Hydraulic loading (design flow, gpd)

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Biological loading (Biochemical Oxygen demand (BOD), mg/L)
Nutrient removal (if required)
Initially, raw wastewater passes through a baffled septic tank, sized according to local state
codes, where a portion of the solids and grease are separated out. Wastewater flows (typically
via gravity) from the septic tank into the reservoir of the processing tank beneath the trickling
filter. The SeptiTech treatment process uses unique characteristics of a patented filter media to
construct a trickling filter in which the treatment occurs in the mixed-liquor as it passes though
the filter. The filter consists of high surface area media situated over a reservoir into which the
percolate drains. Within the reservoir is a pump that distributes a combination of percolate and
newly added wastewater from the baffled septic tank to the top of the media bed.
SeptiTech commercial models use a combination of high surface area plastic media and
polystyrene hydrophobic bead filter media. The surface area of the media provides the living
space for the bacteria to grow while the open spaces within the media allow air to freely pass
through, providing ample oxygen to support the microorganisms. The percolate from the
filtering process drains into the treatment reservoir for further recirculation or discharge. Several
times per day, a portion of the wastewater in the reservoir is pumped back to the septic tank.
Within the septic tank, denitrification takes place. Nitrification of the ammonium in the
wastewater occurs in the liquor as it passes through the media (refer to section 3.2 for further
details on the denitrification process).
A programmable logic controller (PLC) controls the timing and sequence of the recirculation of
wastewater in the lower collection reservoir, as well as the recirculation of a portion of the waste
back to the septic tank. The PLC also controls the discharge to the leaching system. A more
specific description of the process is provided as follows:
3. Treatment Loop Description
The treatment loop consists of two independently functioning processes:
Recirculation Loop during which the contents of the process chamber are distributed over
a column of treatment media and allowed to trickle back down to the underlying
reservoir.
Denite Mix Loop (Optional Configuration) during which nitrified wastewater is pumped
from the processor tank back through a specially modified septic tank.
Discharge Loop during which wastewater is pumped from the processor tank.
3.1. Recirculation Loop
Wastewater from the septic tank enters the processor and collects in a reservoir at the base of the
tank where it mixes with treated water. Wastewater is pumped up to the treatment area above the
reservoir where outside air is passively drawn into the wastewater stream. Oxygenated
wastewater is uniformly sprayed over the media by low-pressure spray nozzles. The microbes
residing within the media bed break down pollutants in the wastewater as it migrates downward
through the media and back into the reservoir below. The wastewater can be circulated through
the filter media 70 or more times in a 24-hour period by the recirculation pump.

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Oxygen is supplied to the processor through venturis installed within the recirculation pump
discharge header prior to the nozzles. The nozzle of the venturi causes the velocity of the water
to increase, thus causing a decrease in pressure. This pressure drop draws air in the system
through an outside air supply pipe.
A programmable micro-logic controller (PLC) activates the recirculation program that self
adjusts these operations based on actual wastewater flow into the processor (as monitored by the
PLC). The processor constantly evaluates the water usage and meters out the effluent discharge
to the disposal system in equal doses over a 24-hour period (a dosing schedule can also be
customized to the project specification).
SeptiTech processors are sized based on the projected design flow with additional capacity to
accommodate wastewater surges (morning and evening flows, special events, etc). Under surge
conditions, the PLC senses the increased flow into the system and adjusts the treatment process
to gradually accommodate the accumulated surge flow while maintaining treatment
effectiveness. If the PLC senses reduced flow, it will automatically ratchet the system down, and
after several days enter “sleep mode” during which time the processor only operates long enough
to maintain the microbe culture.
SeptiTech processing starts automatically with any wastewater input. The recirculation system
then remains in operation, continuing to automatically reset as necessary, as long as wastewater
is discharged into the processor or until the entire accumulated surge flow has been discharged.
3.2. Denite Mix Loop (Optional Configuration)
Wastewater within the process chamber of the system undergoes several treatment processes. A
few of these processes include the biochemical oxidation of organic matter and the nitrification
of influent ammonia; both of which are aerobic processes (i.e. require the presence of oxygen).
In order to achieve a reduction in the total influent nitrogen concentration, the influent ammonia
must be nitrified from ammonia to nitrate within the aerobic SeptiTech processor tank. Then, the
nitrified wastewater must be introduced into an anaerobic environment (i.e. no oxygen) in order
for the nitrate within the wastewater to be converted to nitrogen gas. Once nitrogen gas is
formed, it simply is released into the atmosphere through the natural venting of the septic tank.
SeptiTech offers an optional denitrification configuration, in which a denite-mix pump is used to
recycle nitrified wastewater from the processor tank back to the septic tank. In order to aid in the
denitrification process, SeptiTech adds heavy plastic media (refer to section 6.3 for details) to the
septic tank to provide the necessary environment needed for the denitrifying bacterial culture to
grow. Because this media is added to the primary septic tank, it is required that the primary
septic tank be of a two-compartment configuration. That is, there must be a baffle wall installed
within the septic tank in a 1/3 –2/3 volume configurations. Figure 1 summarizes the nitrogen
removal processes in schematic form.

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The increased residence time provides sufficient time for any dissolved oxygen within the
recycled wastewater to be consumed, thus creating a true anaerobic environment. It also allows
time for the natural processes of denitrification to occur.
Figure 1 summarizes the nitrogen removal processes in schematic form.
Figure 1: SeptiTech Denitrification Process Description
3.3. Discharge Loop
After completing the prescribed treatment process in the processor, the treated wastewater flows
into the final reservoir of the treatment tank known as the decant chamber. Within the decant
chamber, a dual alternating submersible pump station is installed in order to discharge the treated
wastewater out of the processor tank. The pumps are sized in accordance with the pump
operating requirements that are specific to each job. The pumps will run in an alternating
fashion such that no one pump operates more than the other, minimizing wear and tear on the
pumps and thus increasing the life of the pumps. In the event of a lift pump failure, the full load
of the lift station is automatically shifted to the remaining functional pump. The length of
operating time that the pumps run can be adjusted to match the daily flows that the treatment
system receives during an average 24-hour period in order to “tune” the system to achieve
effective treatment of the wastewater.
SeptiTech Processor
Aerobic Zone
Septic Tank
Anaerobic Zone
Wastewater
Influent
Nitrate Rich Recycle
DENITRIFICATION
Within the septic tank, baffles are
installed to increase the hydraulic
residence time and to ensure that
the amount of dissolved oxygen in
the water is sufficiently reduced to
form the anoxic zone needed for
denitrification. Carbon from the
incoming waste stream is utilized
to convert the recycled Nitrate to
Nitrogen gas from the processor.
Incoming ammonia passes through
unchanged to the SeptiTech
processor (Aerobic Zone).
NITRIFICATION
The SeptiTech processor is rich in
dissolved oxygen. BOD is reduced
and ammonia is oxidized to Nitrite
and then to Nitrate. Water within
the processor is recycled back to
the head of the anoxic zone in the
septic tank, which is rich in
Nitrate. The recycle percentage
can be adjusted anywhere in the
range from 100-400% of the
discharge volume in order to
optimize the total nitrogen
removal.
O2
Discharge
Nitrogen
Gas

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The discharge pumps are operated based on a timed program. The default program is to have the
discharge pump run once every hour throughout the day for a set amount of time in order to meet
the daily flow. Both the pump activation cycle and pump run time can be adjusted from the OIT
panel or from off site at the SeptiTech facility. Similar to standard pump stations, there are float
switches (see section 6.6) within the decant section of the processor tank. However, these
switches are used as safety switches rather than pump control switches.
4. Sludge Return Loop
Microbes have a short life cycle, flourishing and dying within a few hours. Due to the unique
physical characteristics of SeptiTech’s media, the wastewater and microbes do not wet or
strongly adhere to the media surfaces, thereby reducing the potential for the media to clog.
Biological growth on the treatment media builds up, eventually sloughs off into the reservoir of
water underlying each of the process chambers.
The accumulated solids in the bottom of reservoir are collected and returned to the head of the
primary septic tank via submersible pump-back pumps to settle out of suspension. These solids
are removed when the septic tank(s) are pumped out during the regularly scheduled septic tank
maintenance (every 2-5 years).
The pump-back pumps are operated twice each day at twelve-hour intervals. The total pump
back flow is based on the daily flow as determined by the PLC. Initially, pump back will be set
to equal 100 percent of the previous day’s flow divided equally between the two pumping
schedules.
5. Alarm Control Loop
Alarm control loops are provided in the control logic to alert the operator or SeptiTech to
abnormal events or conditions in the process tanks or in the control system. In the event that an
alarm condition is detected by the control system, the following actions are triggered:
Activation of audible alarm horn located on the operator interface terminal (OIT);
Activation of alarm light located on the front of the OIT; and
Activation of the telemetry equipment to report that an alarm condition has occurred for
the SeptiTech treatment system.
The controller is also equipped with telemetry that provides remote access to the control system.
This allows an off-site attendant to evaluate the nature of the alarm and either take corrective
actions via the connection to the PLC or notify operating personnel of the fault and arrange for
an on-site inspection prior to initiating corrective actions. At any time, the operator can identify
the nature of any alarm condition, including the possibility of multiple simultaneous alarm
conditions, by viewing the Fault Status screens on the OIT.
The local audible alarm is silenced for a maximum of 24 hours by briefly (<2 seconds) pressing
the illuminated red reset pushbutton on the operator panel. The alarm light in the pushbutton will

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remain lit until the fault causing the alarm is cleared (i.e., the problem is fixed). If an alarm has
been silenced but the fault has not been cleared after 24 hours, the local alarm will again sound.
Note that this twenty-four hour silencing does not prevent the local alarm from sounding again
during that period in response to any different fault conditions.
Fault conditions are cleared and reset by pressing and holding the Reset pushbutton for at least
twelve (12) seconds. Following this action, all system alarms are cleared, and the visual alarm
light will shut off. The alarm loop will then freely respond to any abnormal condition that
remains uncorrected.
See section 7 for more details in reference to alarms and troubleshooting.
6. System Components
6.1. Concrete Tank
All SeptiTech commercial processors come housed within a precast concrete tank. The capacity
of the concrete tank depends on the processor model that is being used. The concrete tank
capacities are as follows:
Table 2: SeptiTech Concrete Tank Information
SeptiTech Model
Concrete Tank Capacity*
STAAR 1.2
2,000 Gallons
STAAR 1.5
4,000 Gallons
STAAR 3.0
6,000 Gallons
STAAR 4.5
8,000 Gallons
*Tank capacities and dimensions may vary depending on precast concrete provider
All tanks come equipped with aluminum access hatches that are available in several
configurations; pedestrian loaded, gas tight / water tight, and H20 loaded. The access hatches are
installed in order to have access into the tanks for installing the processor within the concrete
tanks, for performing maintenance, and for retrieving samples. The majority of the processor
components can be maintained or replaced through the hatches without having to enter into the
processor.
6.2. Piping & Fittings
The piping and fittings installed within the treatment processors are constructed of Schedule 40
and/or Schedule 80 PVC.
6.3. Media
The treatment processor contains two (2) different types of treatment media. One is plastic
Cascade Bio-Ring media and the other is small polystyrene beads. The Bio-Ring media is a
plastic high surface area media manufactured by Jaeger Products, Inc. (www.jaeger.com). For

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every cubic foot of media, there is 30 square feet of surface area, providing the surface area
needed for the attachment of biological growth.
Figure 2: SeptiTech Plastic Media
Picture courtesy of www.jaeger.com
The polystyrene hydrophobic bead filter media occupies the upper portion of the treatment unit.
Due to the hydrophobic nature of the media, microbes present in the wastewater do not strongly
attach to the media, but are rather entrained within the wastewater as it flows through the media.
In this suspended state, the microbes use and transform the nutrients and organic materials
provided by the constant supply of fresh wastewater to form new cell mass. The open spaces
within the media allow air to freely pass through, providing ample oxygen to support the
microorganisms.
Figure 3: SeptiTech
Polystyrene Bead Media
6.4. Disinfection (Optional)
SeptiTech provides the option of disinfection with the pretreatment systems using Ultraviolet
(UV) light to disinfect the wastewater. The processor discharge pumps convey the treated
wastewater through the disinfection unit. Various configurations are available depending on the
flow requirements that are specific to the job for a flow range of 10 GPM –80 GPM. The
manufacturers of the UV disinfection units that SeptiTech primarily uses are as follows:
Atlantic Ultraviolet Corporation (Sanitron® Ultraviolet Water Purifier)
Emperor Aquatics Inc. (Smart “High Output” UV Sterilizers)
Schematics of the UV units that are used are shown in Figure 4 and Figure 5.

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Figure 4: Sanitron Ultraviolet Water Purifier
Picture courtesy of www.ultraviolet.com
Figure 5: Emperor Aquatics (Smart HO UV Sterilizer)
Picture courtesy of www.emperoraquatics.com
6.5. Pumps
The pump of choice that SeptiTech uses within the commercial processors is the Tsurumi Pump
VANCS series of fully submersible pumps. The pumps are constructed of stainless steel and
fiberglass reinforced plastics (FRP) making them highly resistant to corrosion. The impellers are
also constructed of FRP allowing for the passage of solids, stringy materials, and resistance to
wear when pumping abrasive materials.

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Tsurumi, Inc. (www.tsurumiamerica.com): VANCS series of pumps
Figure 6: Tsurumi VANCS Series Submersible Pump (Typical)
The various processes in which the pumps are used are as described below:
Recirculation –The recirculation of the wastewater from the reservoir portion of
the processor up to the spray manifold that distributes the water over the top of the
media.
Pump-back –The removal of solids from the bottom of the tank back to the head
of the primary septic tank.
Denite Mix –(Optional) The recirculation of nitrified wastewater from the
processor tank back to the custom denite septic tank.
Discharge –Duplex pumping system that discharges treated water from the
processor to the disposal system.
Table 3 lists the model numbers of the standard pumps that SeptiTech uses for each of the above processes for each
SeptiTech model.
Table 3: SeptiTech Standard Pumps
Processor
SeptiTech Standard Pump Models
Recirculation Pump
Pump-Back Pump
Discharge Pump
STAAR 1.2
50PN2.4S
OM3
OM3
STAAR 1.5
50PN2.75S
OM3
OM3
STAAR 3.0
(2)50PN2.4S
OM3
OM3

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STAAR 4.5
(2)50PN2.75S
OM3
OM3
In addition to the above standard discharge pumps, other models with various pumping
capabilities are available that can be used on a case-by-case basis in order to meet pumping
requirements depending on the project. Pumps are available in Single Phase 120/230 volt and
Three Phase 208/230 volt arrangements.
6.6. Float Switches
SeptiTech uses float switches within the decant portion of the processor for process safety and to
aid in the pump control process. These float switches are mechanical devices and do not contain
mercury. The switches that SeptiTech uses are manufactured by Alderon Incorporated.
7. Alarms and Troubleshooting
The following table outlines SeptiTech alarm conditions and the associated reasons that could
have caused the alarm to be generated. All alarm conditions on SeptiTech commercial systems
will report to a SeptiTech technician or designated party via the telemetry system.
Table 4: Alarm Descriptions and Troubleshooting
Alarm
Description
Problem
Solution
High Float Alarm
High Float stayed ON
for 60 minutes
(default Alarm Delay)
1. High Float hung up unable
to fall back freely
Move Float to allow free
access
2. Discharge Line
broken/unhooked
Check with contractor
3. Discharge Line
blocked/frozen
Check with contractor
4. Continuous high flow in
excess of design
Reduce flow to normal
5. Float failed
Replace Float
6. Input failed on PLC
Replace PLC
Low Float Alarm
High Float came ON
while Low float stayed
OFF
1. Low Float hung up - not
able to raise freely
Move float to allow free
access
2. Float Input failed on PLC
Move Wire #4 from X1 to
X7, or replace PLC
3. Float failed
Replace Float
Discharge Alarm
Discharge Pump told to
run but no feedback
(X Input)
1. Circuit Breaker tripped
Reset Breaker if continues
replace Pump
2. Failed neutral connection
Check connections
3. Relay failed
Check voltage out of
Relay, check Relay Pins
4. Failed Current Sensor
Replace Current Sensor
5. Pump failed open
windings
Replace Pump
6. Circuit breaker Off
Turn on Circuit
7. Input failed On PLC
Replace PLC

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Alarm
Description
Problem
Solution
Recirculation Alarm
Recirculation Pump told
to run but no feedback
(X Input)
1. Circuit Breaker tripped
Reset Breaker - if
continues Replace Pump
2. Failed neutral connection
Check connections
3. Relay failed
Check voltage out of
Relay, check Relay Pins
4. Failed Current Sensor
Replace Current Sensor
5. Pump failed open
windings
Replace Pump
6. Circuit Breaker off
Turn on Circuit
7. Input failed On PLC
Replace PLC
8. Thermal trip
Add water, check Float
levels
Process Safe Float Alarm
Float dropped out
(Low position)
1. Septic Tank pumped
Wait until septic tank has
been refilled
2. Pump-back pump runtime
is too long
Adjust runtime within
program
3. Discharge pump runtime
is too long
Adjust runtime within
program
Alarm, With or without
Fault Screen
Alarm sounding, reset
button ineffective
1. Control Panel fuse blown
Replace Fuse if Continues
Check for Shorts
2. Relay failed
Check Voltage out of
Relay, Check Relay Pins
3. Failed neutral connection
(missing or loose)
Check connections or add
wire
4. Wire #20 missing or loose
(CR1 - Y0)
Tighten or add wire
5. PLC stalled
Cycle power
6. Button failed
Replace Button
7.1. Troubleshooting Guide: Frequently Asked Questions/Problems
7.1.1. Odor
Check to be certain system is vented properly through building vent stack. Is there an
impediment blocking air flow like a pump station or a septic tank effluent filter that does not
allow free airflow? A pump station will require a separate ventilation line. More drastic
measures include a separate vent for the septic tank or cut into the line between the septic
tank and processor.
Is the customer’s vent positioned properly and is it tall enough? We have had very good luck
eliminating most odors with simple vent pipe extensions.
Sometimes a carbon stack filter can be inserted onto the vent stack to alleviate odor. These
are typically available through a plumbing supply house.
Are the system access ports tightened properly? Contact SeptiTech service for sealing
suggestions.

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Be wary of natural downdrafts conditions. Septic odor can often be traced to poor vent pipe
positioning and downdraft air currents.
Make sure the customer locates the precise position of odor if possible. We have had some
cases where odor has arisen from sources not associated with the system such as old buried
septic tanks.
7.1.2. Power
Can power be shut down? Customers should know that for seasonal businesses and
applications where power may be suspended for extended periods of time, that the system
will rebound quickly when power is applied. However, be certain that your customer is not
planning to shut the power off regularly, since the system controller automatically
accommodates for low/no flow status.
Why did the alarm sound when the power comes back on? When system power is turned on
it takes the PLC, 15-seconds or so to “boot-up,” much like a computer. In this timeframe, the
alarm will sound because the PLC, which controls the alarm function, is not yet operating.
7.1.3. Customer Maintenance
SeptiTech systems are designed to operate without routine customer maintenance. While
septic tanks must be pumped at regular frequencies (depending on flow and strength), the
SeptiTech processor is not to be pumped as the Sludge return loop eliminates the need for
pumping.
7.1.4. Air Intake
The air intake pipe should be maintained in such a way to keep it clear of materials that could
block airflow. (eg. deep snow, entangled brush).
If an ear is placed next to the air intake pipe, you may be able to hear the sound of the water
sloshing about in the processor.
However, if installation directions were not followed and there is no positive pitch in the
processor sloping toward the processor, or if there is a dip in the air line, there is a chance that
water can accumulate in the air intake pipe. This is not good and a loud “gurgle” may signify
such a condition. Usually, the contractor must be notified to correct this problem. Also, the
strength of the air intake (during recirculation pump operation) may be weakened if there is
water in this pipe, which you can test by placing a small piece of paper against the air intake
pipe. Suction from the air intake should be able to hold a small piece of paper in place.
7.1.5. Pump Life
We use high quality Tsurumi and Goulds pumps for all of our systems. However, lifespan of
pumps is very hard to estimate due to conditions beyond our control. For instance, amount of

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system use as well as quality of power (i.e. our pumps generally do not like “dirty power”)
can affect pump lifespan. In general, our pumpback and discharge pumps operate less than
recirculation pump(s) during normal system operation and should last many years. Our
recirculation pump(s) under normal use should last 3-5 years or longer.
7.1.6. Audible Alarm
We have upgraded our alarm decibel level and alarms on newer systems should be loud
enough to be heard if placed within reasonable distance of living/working space. However, if
system configuration does not allow main controller to be placed within a reasonable
distance, SeptiTech offers a remote alarm option, which allows alarm placement wherever the
customer desires. Please contact SeptiTech for a current cost of this accessory, which must
be installed by an electrician.
7.1.7. Access Lids.
It is important to understand that access lids must be easily accessible by SeptiTech service
personnel and must not be buried.
7.1.8. Can I drive over my system?
As long as the tank(s) and access hatches that house the SeptiTech processor have been built
to H20 loading requirements.
7.1.9. Care of System.
Proper care of system mirrors proper care for any onsite septic system and is reflected in the
Customer Use section of the owner’s manual. This is detailed below:
Pumping Septic Tank:
SeptiTech recommends that you pump your septic tank once every 3-5 years. Note: the
septic tank is not the same unit as the SeptiTech processor. SeptiTech processors should
never require pumping.
Use of Bleach:
Your septic tank and SeptiTech treatment system relies on bacterial action to work.
Therefore, please avoid the heavy use of bleach as much as possible. If bleach must be
used, use it sparingly and spread out its use over time so the bacteria in the system are
not all depleted. Likewise, do not flush antibiotic pills into the system as they can also
kill the bacterial action in the septic and processor tanks.
Disinfecting a Well:
Occasionally a contaminated well needs to be disinfected (usually with chlorine). If you
need to do this, do not run the chlorinated water through your septic system. Open the
outside water faucets and let the water run for several hours or as long as necessary to
flush the chlorine out of the well. Pump the well for several hours after you no longer
smell chlorine, in the meantime do not use any water in the house.
Trash & Garbage Disposals:
Always keep sanitary napkins, cigarette butts, coffee grounds, paper towels, excessive
cooking grease, paints and non-biodegradable materials out of the system. Use of sink

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grinders (garbage disposals) can result in heavy and inconsistent load of organic
materials into the system and are therefore not recommended.
Discharges from Potable Water Treatment Systems:
Discharges from water treatment systems, such as water softeners or water filtration
systems that require back flushing, are not considered wastewater and should never be
pumped into a septic system. This flow can and should to be diverted into a separate,
properly constructed dry well (refer to state and local codes).
Plumbing Fixture Maintenance:
Plumbing fixtures such as toilet bowl fill valves and faucets should be maintained to
insure that leaks do not cause excess water to enter the septic system.
Additives:
Refrain from using toilet tablets or products such as Drain-O as these products will
deplete necessary bacteria from the septic system. Never use septic tank additives of
any kind. Most are harmful to the system and do not have any positive effect.
Alarm:
The computer in your SeptiTechcontrol panel monitors all the important functions of
the SeptiTech processor. It will set off an alarm if any of several events occur such as a
failure to discharge water from the tank. The system autodialer will alert a technician.
Press the re-set button to silence the alarm and call SeptiTechfor service. A service
telephone number for your area should be affixed to the cover of the panel.
7.1.10. System Operation Information
a. SeptiTech can provide our system data reports pulled at annual inspections or other
intervals as arranged to fulfill local permitting requirements. Please contact SeptiTech or
your SeptiTech distributor for details.
b. The SeptiTech controller is accessible for basic data gathering.
c. Most Control Panel functions are designed to be accessed by a SeptiTech-trained
professional and are therefore password protected to prevent unauthorized access

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8. O&M Agreements / Checklists / Maintenance Schedule
Many states, such as the State of Rhode Island, require an advanced treatment system owner to enter
into an O&M agreement with a certified maintenance provider. The following is an example of a
typical SeptiTech O&M Agreement between a customer and a SeptiTech authorized provider. Of
course, state regulations differ and any agreement must be tailored to specific state requirements.
Eco-Tech Supply, Inc. Phone: [phone]
400 South County Trail –Suite A201 Fax: [phone]
Exeter, RI 02822
Email: [e-mail]
Operations and Maintenance Agreement
Eco-Tech Supply, Inc. proposed to perform the maintenance requirements prescribed for your
SeptiTech Treatment System and Drainfield (Pressurized or non-pressurized) on property stated
below.
Property Owners Name ____________________________________________
RIDEM Permit # _____________________ SeptiTech Panel # ______________________
Street __________________________________________ City _________________________
State _________________ Zip __________________
Work Phone ________________________ Home Phone ________________________
Permanent Mailing Address (If different from site address)
Street __________________________________________ City _________________________
State _________________ Zip __________________
Inspection to include:
1. Inspect/Clean processing tank and treatment components and recommend pumping as required.
2. Inspect Control Panel for proper operation, including all floats, pumps and communication as
applicable. Make appropriate adjustments as required.
3. For pumped discharge, Inspect/Clean discharge pump station and controls.
4. Inspect/Clean pressurized drainfield, as applicable.

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5. If applicable, monitor system remotely through telemetry module and notify owner of any
corrective action required for alarms.
6. If UV filter is present, Inspect/Clean UV basin and components. Owner must provide operator
with means of disconnect to power off the unit for inspection. Bulb to be replaced every two years
unless failure occurs before that time. Bulb is not included in contract price and will be billed at
list price at time of replacement.
7. Evaluate condition and operation of overall system, and report findings.
Responsibility of the Owner
1. Provide access to water at the SeptiTech tank in the form of a hose and provide access to the
system and control panel on the day of the scheduled maintenance visit.
2. Notify Eco-Tech Supply, Inc. of alarm conditions or problems that occur throughout the year.
3. If the system has a Telemetry Module, the System Owner shall arrange for the installation of a
telephone line to the panel and maintain telephone service to the System address at all times.
Items NOT covered by this service contract
1. Corrective and/or repair maintenance if necessary.
2. Effluent sampling and/or analysis if required.
3. The cost of tank pumping if required.
4. Any emergency and or any other unscheduled maintenance and/or service calls to the System
address.
This maintenance will be performed semi-annually and invoiced after each inspection for a total
yearly fee of $______________. Any unscheduled maintenance services will be performed at the
hourly rate of $______ plus parts and travel. All invoices shall be due within 30 days of the date of
invoice, unless agreed otherwise. Past due balances subject to a service charge of 1.5% per month.
The undersigned agrees to the terms of this contract, and understands that a contract is required for
perpetuity. The owner is responsible to have the initial contract recorded at the local Town/City Hall
on the property's deed at the town clerk's office. This contract is transferable to subsequent owners
and must be disclosed at any and all transfers of ownership. This contract is valid for three years
from the date below, or the date of system startup, which ever is most recent; and is renewable at the
end of the three years.
_____________________________________ _____________________________
Homeowner Date
_____________________________________ _____________________________
Representative Date
Eco-Tech Supply, Inc.

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Acknowledgment of Understanding
Owner Responsibility to Maintain/Convey SeptiTech Service Contract(s)
I/we, as owners of a SeptiTech Treatment System, understand that I/we have purchased
from Septi Tech, Inc. Dealer or Dealer's agent an onsite wastewater treatment system that
uses proprietary advanced wastewater treatment technology. I/we agree to purchase and
maintain a Service Contract for this system from our Echo-tech Supply, Inc. Dealer or
from Dealer's agent for the entire period of the warranty.
I/we also understand that this Service Contract must be maintained. Failure to pay any
renewal fees within 30 days of the due date shall result in termination of all Maintenance of
our SeptiTech Treatment System.
I/we also understand that failure to pay any renewal fees within 30 days of the due date
will void all SeptiTech Treatment System warranties on any component of the SeptiTech
Treatment System.
I/we also understand that I/we are obligated to disclose this information and this
Service Contract requirement to subsequent property buyers. I/we also acknowledge
that I/we have received a Homeowner's Manual (for preventive maintenance) and that
I/we are obligated to pass this Homeowner's Manual on to subsequent property
owners.
Site Address: Street ____________________________City _________________________
State _________________ Zip __________________
__________________________ _______________________________
(Printed Name) (Printed Name)
__________________________ _______________________________
(Signature) (Signature)
__________________________ _______________________________
(Date) (Date)