Infiltrator delta ENVIRO-AIRE EA50 User manual

AEROBIC RESIDENTIAL
WASTEWATER TREATMENT
SYSTEM
Delta Treatment Systems
9125 Comar Drive
Walker, LA 70785
[phone]
www.infiltratorwater.com
info@infiltratorwater.com
December 2022
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL
ENVIRO-AIRE is a
registered trademark of
Delta Treatment Systems
ATTENTION: WARRANTY IN MANUAL

Delta Treatment Systems • 9125 Comar Drive, Walker, LA 70785 • [phone] • www.infiltratorwater.com
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IMPORTANT NOTES
TABLE OF CONTENTS
HOMEOWNER RECORDS
1. The Delta Treatment Systems Model EA50 has been tested by NSF International and conforms to NSF/ANSI 40, class 1 effluent
requirements. All other EA models are certified based on provisions in the standard for certification of a series of plants of the
same model varying only in rated treatment capacity and materials of construction.
2. State and/or local regulations govern the installation and use of individual aerobic wastewater treatment systems and must be
complied with.
3. Consult your local Sanitarian/Regulatory Agency prior to installation.
4. FOR INSTALLATION OF ENVIRO-AIRE IN INFILTRATOR TANKS ONLY: An Infiltrator Authorized Assembler shall perform the
assembly of the Infiltrator treatment system. Please call [phone] with any questions.
5. FOR INSTALLATION OF ENVIRO-AIRE IN CONCRETE TANKS ONLY: If the concrete tank is delivered to the site without the
ENVIRO-AIRE pre-installed in the tank, please contact your distributor.
6. This manual provides installation information on the TREATMENT PLANT ONLY. Other components, such as dosing equipment
or drip irrigation, have separate manuals and warranties. The installer is responsible for providing the manual and warranty
information for each component in your system. Contact your installer or [phone].
7. NOTE TO INSTALLER: Complete the HOMEOWNER RECORDS form below and provide this manual to the homeowner.
Important Notes................................................................................................................................................................................. 2
ENVIRO-AIRE™Treatment Systems Notice.................................................................................................................................... 3
Introduction........................................................................................................................................................................................ 5
Installation Instructions.................................................................................................................................................................... 8
Troubleshooting Guide ................................................................................................................................................................... 11
ENVIRO-AIRE Unit Specifications ................................................................................................................................................. 12
Installer Checklist............................................................................................................................................................................ 16
Service Provider Checklist............................................................................................................................................................. 17
Data Plates ....................................................................................................................................................................................... 18
Warranty ........................................................................................................................................................................................... 19
S/N:____________________________________ DATE OF INSTALL ATION: ______________________________________________
INSTALLED BY: _______________________________________________________________________________________________
DISTRIBUTOR: ________________________________________________________________________________________________
_____________________________________________________________________________________________________________
_____________________________________________________________________________________________________________

Delta Treatment Systems • 9125 Comar Drive, Walker, LA 70785 • [phone] • www.infiltratorwater.com 3
ENVIRO-AIRE TREATMENT SYSTEMS NOTICE
To be completed by the installer and provided to the homeowner.
ENVIRO-AIRE TREATMENT SYSTEMS NOTICE
This manual provides operations, installation and warranty information on the TREATMENT PLANT ONLY. Other components
that you may have, such as dosing equipment, drip irrigation or other components, require additional operations manuals and carry
separate warranties.
Be sure that you have all of the correct manuals for each of the component pieces in your system.
Contact your installer or call [phone].
S/N:____________________________________ DATE OF INSTALL ATION: ________________________________
AERATOR PACKAGE COMPLETE:_________________________________________________________________
INTERNAL ASSEMBLY: AIR DROP LINES COMPLETE AND SECURED:________________________________
(Initial)
(Initial)
DELTA TREATMENT SYSTEMS QUALITY ASSURANCE TAG

Delta Treatment Systems • 9125 Comar Drive, Walker, LA 70785 • [phone] • www.infiltratorwater.com
4
ENVIRO-AIRE TREATMENT SYSTEMS NOTICE
This home is served by an Individual Wastewater Treatment System. This system will serve you well only if it is properly maintained.
Your system is comprised of:
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
Your system is located:
________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________
Please do not build on, fill over, allow heavy traffic or allow water to stand over this area. Avoid using strong chemicals, sanitizers,
cleaning fluids, etc., which will kill helpful bacteria in the system. You should also avoid flushing grease, food scraps, cigarette butts,
sanitary napkins, and other inorganic waste down the drain.
You should have your system serviced (pumped out) every 3 to 5 years, depending on usage. Your service technician can advise you
if you need more frequent or additional service.
To have your system serviced, or for additional information, contact Infiltrator Water Technologies at [phone].
All of the details regarding system operation can be found in this manual. If you did not receive a copy, call
Infiltrator Water Technologies at [phone] or email info@infiltratorwater.com and we will send you one at no charge.
Keep a Record of Service Below:
DATE SERVICE PERFORMED SERVICE TECHNICIAN
ENVIRO-AIRE TREATMENT SYSTEM NOTICE

Delta Treatment Systems • 9125 Comar Drive, Walker, LA 70785 • [phone] • www.infiltratorwater.com 5
INTRODUCTION
THE DELTA AEROBIC WASTEWATER
TREATMENT SYSTEM AND HOW IT WORKS
The ENVIRO-AIRE Aerobic Wastewater Treatment System that
you have purchased produces high quality effluent suitable
for various disposal methods. It is used to enhance your on-
site wastewater treatment system. You can be proud that in
purchasing your ENVIRO-AIRE System, with a minimum amount
of maintenance, you can directly contribute to a cleaner, safer
environment.
All wastewater treatment systems of this type work by using
the bacteria that nature has provided. By pumping air into
the system, the bacteria grow and thrive in much larger
amounts than would occur naturally. The increased population
of bacteria speeds up the process of treating domestic
wastewater which makes it safe to release into the environment.
This entire process takes place within the walls of your specially
designed ENVIRO-AIRE Treatment System.
Your ENVIRO-AIRE consists of three chambers contained
in one treatment system: pretreatment, aeration/mixing, and
clarifier. Domestic wastewater enters the pretreatment chamber
where solids settle out of the raw wastewater. The effluent then
flows into the aeration/mixing chamber. Mixing and aeration
are accomplished by air introduced by the aerator via the air
manifold located in this chamber. The mixed liquid then enters
the clarification chamber through an opening at the bottom of
the baffle wall. The quiet conditions in this chamber allows any
remaining solids to settle to the bottom and reenter the mixing
chamber before exiting to the drainfield. The result of this
process is a clear, odorless discharge, which meets or exceeds
state water quality standards for CBOD5and TSS.
By following the few simple steps that you find in this manual,
your ENVIRO-AIRE System will provide you with years of
service and the knowledge that you are doing your part to
protect our groundwater, lakes, rivers and streams.
HOMEOWNER CARE AND OPERATION
INSTRUCTIONS
The ENVIRO-AIRE System has been designed and built to
provide long term, reliable and efficient service. Once the unit
has been installed (see installation instructions), the unit will
operate with a minimal amount of attention.
Please reference the system’s Data Plates for serial
number that are located on the aerator, and the alarm
panel in the event that a problem arises or service is
required. Call [phone] for your local service
provider’s contact information.
STANDARD MAINTENANCE SCHEDULE
Every 6 months for the first two years after installation,
annually after the initial 2 years. Performed by a certified
service provider.
• Inspect and make any necessary adjustments to mechanical
and electrical components.
• Inspect the air filter on the aerator. Rinse with warm water if
necessary. Do not use oil or other solvents. Allow the air filter
to dry before restarting the system.
• Inspect effluent quality’s color, turbidity, and check for odor.
An earthy odor is normal.
• Take a sample from the pretreatment treatment system and
aeration chamber to check the sludge level described in the
“Solids Removal” section below.
THE FOLLOWING ARE INDICATIONS THE
SYSTEM MAY REQUIRE SERVICE:
Warning Device
The visual and audio warning device comes on when the
power to the aerator has been interrupted, when the air supply
system has malfunctioned, or there is a high-water level in the
treatment plant. If the alarm is activated, check for a tripped
GFI, blown fuse or thrown circuit breaker. Ensure the aerator
is operating properly. Once accustomed to the soft humming
sound of a properly operating unit, any unusual noise is an
indication of malfunction. If an unusual noise is detected or total
failure is observed, call an authorized Delta service provider or
dealer/distributor.
Odors
Offensive odors may indicate the system is not functioning
properly. If such a condition should develop, call a certified
service provider or dealer/distributor.
The homeowner must be notified in writing if any improper
operation is observed and cannot be corrected at the time
of service.
TO KEEP MAINTENANCE TO A MINIMUM
AND ENSURE HIGH EFFLUENT QUALITY
THE FOLLOWING SHOULD NOT BE USED OR
DISCARDED INTO THE SYSTEM
Do not discard the following into the system:
• Greases, fats, oils.
• Pesticides, herbicides, or any other toxins.
• Paints, household chemicals, automobile fluids or mop water.
• Non-biodegradable items such as cigarette butts, rags,
feminine hygiene products, disposable diapers, condoms,
hair, bandages, coffee grounds, paper towels, plastic or
metallic objects, etc.
• Citrus products, oranges, lemons, grapefruit, etc.
• Septic system additives as they may do more harm than good.
• Hydraulic overload due to excessive water use or inflow from
other sources such as rain gutters or leaky fixtures (toilet,
sink).
• Home brewery waste, strong medicines, and antibiotics.
• Strong disinfectants, bleaches or laundry products.
• Discharge from water softeners.
• Antibacterial soaps should be avoided.
• Recommended detergents are powdered, low-sudsing, low
phosphates and biodegradable, washing soda ingredients.

Delta Treatment Systems • 9125 Comar Drive, Walker, LA 70785 • [phone] • www.infiltratorwater.com
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INTRODUCTION
Fabric softener dryer sheets are recommended rather than
using liquid fabric softeners.
• Use non-chlorine, biodegradable and non-toxic cleaning
products, dish washing liquids, powdered dishwasher
detergents, or powdered cleaners and baking soda.
• Use garbage disposals sparingly. Dispose of food waste,
grease, etc., in the solid waste bin. Food waste represents
additional matter your wastewater treatment system will have
to digest, increasing pump-out intervals.
• Laundry loads should be spread out over the week. Multiple
loads on one day or half loads are not recommended.
Systems requiring pump-outs due to the above violations
are not covered by the warranty.
The ENVIRO-AIRE System is designed to handle domestic
wastewater only. For anything other than domestic wastewater,
contact Delta Treatment Systems.
WARNINGS
• The proper operation of this or any other home sewage
system depends upon proper organic loading and the life
of the microorganisms inside the system. Delta Treatment
Systems is not responsible for the in-field operation of a
system, other than the mechanical and structural workings
of the plant itself. We cannot control the amount of harsh
chemicals or other harmful substances that may be
discharged into the system by the occupants of a household.
We can provide only a comprehensive owner’s manual that
outlines substances that should be kept out of the system.
• Hydraulic overloading (flows in excess of design flow) may
cause your system not to perform to the fullest capabilities.
• Lack of maintenance, including not cleaning the aerator’s
filter will cause damage and is not covered under the
manufacturer’s warranty.
• Ants have been shown to be destructive to the aerator.
Regular care should be taken to prevent infestation of ants
near the system. Damage or destruction by ants is not
covered under manufacturer’s warranty.
• Your state or local health department may require other
components that operate separately or in conjunction with
equipment manufactured by Delta Treatment Systems. Delta
Treatment Systems is not responsible for the mechanical
or electrical operation or safety of equipment it does not
manufacture or supply with its aerobic treatment units.
Particular care should be used in evaluating the electrical or
mechanical safety of equipment manufactured by others. This
may include but not be limited to electrical control panels or
aerators.
• If electrical service has not been installed for checking the
air distribution system during installation, and if an extension
cord is used to test the aerator, DO NOT leave the extension
cord plugged in. Remove it after testing is completed.
• Due to a possible fire hazard, DO NOT plug into service
equipment on power pole and DO NOT use extension cords.
For any use other than as described above. All electrical work
performed by the installer or others must be in accordance
with the National Electrical Code (NEC) and local codes.
• The operation and maintenance outlined in this manual
applies to normal operating conditions. Extreme conditions
such as frigid cold temperature, extreme heat and high
altitudes may affect the operation and maintenance of
this unit. Consult Delta Treatment Systems personnel or
authorized representative regarding these extreme conditions.
WARNING Failure to properly secure treatment plant lids may
result in a serious health and/or safety hazard.
SOLIDS REMOVAL
Determination of the need for solids removal can be done using
either of the following two methods
Sludge Judge
Before you begin, turn off power to the aerator and let the
system rest for 15 minutes, allowing the suspended solids
to settle at the bottom of the aeration chamber. Remove the
treatment system lid and lower the sludge judge to the bottom
of the treatment system. The float valve will open, allowing
liquid to enter the tube. When filled, tug slightly on the line as
the unit is raised which sets the check valve. If the sludge judge
indicates more than 12 inches of sludge in the bottom of the
treatment system, the treatment system should be pumped
out. Call your local authorized sewage disposal service to have
the treatment system contents pumped out and disposed of
properly.
Settleability Test (alternative option to a sludge judge test)
Collect a sample from the aeration chamber of the treatment
system through the access riser using a clear one-quart jar.
The aerator must be operating to keep solids in suspension.
Allow the sample to settle for thirty minutes. If the solids
content exceeds 60% of the total volume after settling, the
wastewater treatment plant should be pumped out. Call your
local authorized sewage disposal service to have the treatment
system contents pumped out and disposed of properly.
Pumping Method
• Be sure the power to the aerator is off before you begin
pumping.
• It is recommended that the primary chamber always be
pumped, prior to pumping the aeration chamber removing all
solids
• Remove any floating solids by skimming.
• Pump out two-thirds of the aeration chamber volume with the
suction pipe opening being placed at the treatment system
bottom.
After the pump-out process is complete, fill the treatment
system with fresh water to normal operating level.
Refer to the Installation Instructions to return the wastewater
treatment plant back to operation.
The homeowner must be notified in writing if any improper
operation is observed and cannot be corrected at the time
of service.
Note: Costs associated with pumping are not covered the
under warranty and are not included in the service policy.

Delta Treatment Systems • 9125 Comar Drive, Walker, LA 70785 • [phone] • www.infiltratorwater.com 7
INTRODUCTION
SEASONAL USE GUIDELINES OF ENVIRO-AIRE
AEROBIC TREATMENT UNIT
1. System not in use for more than one month and less than
three months. Electrical power is left on and there are no
frost conditions.
• Leave aerator on and system running.
2. System not in use more than three months. Electrical power
is turned off and there are not frost conditions.
• Turn off aerator.
• Remove all material and liquid from treatment system.
• Refill with clean water.
• When system is back in use turn on aerator.
3. System not in use more than three months. Electrical power
is on and there are not frost conditions.
• Leave aerator on and system running.
• OR, Turn off aerator, remove all material and liquid from
treatment system.
• Refill with clean water.
• When system is back in use turn on aerator.
4. System not in use. Electrical power is turned off and there are
frost conditions.
• Turn off aerator.
• Remove all material and liquid from treatment system.
• If high groundwater is present, fill with clean water.
• If no groundwater is present, leave treatment system empty.
Extremely cold climate only.
• When system is back in use turn on aerator.
Under no circumstances should the aerator be turned
off for more than a few days without removing treatment
system contents!
Contact Delta for recommendations if your site conditions are
not covered by the above mentioned conditions.
SAMPLING REQUIREMENTS
(if required to meet local regulation)
An ENVIRO-AIRE aerobic treatment plant properly operated
and maintained should provide the following effluent quality of:
Carbonaceous Biochemical Oxygen Demand 5
day average (CBOD5) of
less than 25 mg/l (or ppm)
Total Suspended Solids (TSS) of
less than 30 mg/l (or ppm)
Taking Effluent Samples
Sampling should be taken by a local certified testing
laboratory or by following their procedures. The following
recommended guidelines may be used if local procedures
are not available:
Grab Samples: If analysis is begun within two hours of
collection, cooling is unnecessary. If analysis is not started
within two hours of sample collection, keep sample at or below
4oC from the time of collection. Begin analysis within six hours
of collection; when this is not possible because the sampling
site is distant from the laboratory, store at or below 4oC and
report length and temperature of storage to the lab. Never
start analysis more than 24 hours after grab sample collection.
When samples are to be used for regulatory purposes, make
every effort to deliver samples for analysis within six hours of
collection.
Handle, store and transport samples as specified by policies
and procedures provided by the testing laboratories.
Affix labels to sample bottles.
Ensure chain of custody forms are properly completed after
samples are collected.
Procedures for collecting samples from the access riser:
1. Remove the access riser lid.
2. Quickly plunge sample collection dipper 2 to 3 inches below
the water surface.
3. Remove the sample collection dipper, pour contents into the
appropriate sample bottles, and immediately cap bottles.
Sample procedures for combination vent/sample port in
the discharge line:
1. Prior to collecting sample have ENVIRO-AIRE Plant discharge
effluent for up to 4 minutes by flushing toilets and/or use
garden hose to flush out sample port.
2. Insert sample collecting bottle to collect only effluent which
is cascading over the cascading edge.
3. Pour contents into the appropriate sample bottles and
immediately cap bottles.

Delta Treatment Systems • 9125 Comar Drive, Walker, LA 70785 • [phone] • www.infiltratorwater.com
8
INSTALLATION INSTRUCTIONS
FOR USE BY CERTIFIED, LICENSED INSTALLERS
1. ENVIRO-AIRE Delivery and Handling
The ENVIRO-AIRE is delivered to the installation site assembled
in an Infiltrator Tank or approved precast concrete tank. Care
must be taken when offloading and unpacking the treatment
system and components to ensure no damage occurs to the
treatment system and components by forklift or any other
offloading device. Check for damage that may have occurred
in transportation and notify the factory or distributor within 24
hours of delivery.
2. Set Treatment System
Prepare the excavation and compact the base material before
setting the treatment system. Set and position and level the
treatment system in the proper location. Reference the Infiltrator
IM- and CM-Series Septic Treatment system General Installation
Instructions.
3. Plumb Treatment System Inlets and Outlets
Plumb and solvent weld all inlet and outlet piping. Inlet and
outlet plumbing requirements are specified by state or local
regulatory code.
The inlet piping should be sloped downward into the treatment
system and the outlet piping should sloped downward and away
from the treatment system or per code.
4. Backlling the Treatment System
Backfill the treatment system in lifts of no more than 12 inches.
Compact each lift up to the treatment system inlet and outlet
pipes. Reference the Infiltrator IM- and CM-Series Tank
Installation Instructions.
5. Fill Treatment System with Clean Water
Begin filling the treatment system with clean water while the air
distribution and control panel assembly are completed. Continue
filling the treatment system until water level reaches the outlet
tee.
6. Treatment Systems Risers, Lids, Venting,
and Sample Ports
Treatment System Lids: Finished grade should slope away
from treatment system lids, vents, and sampling ports to prevent
surface runoff from entering the system.
Treatment system lids must be securely attached with bolts,
screws, or other locks to secure the lids and to prevent easy
access. Optional secondary lid options are always highly
recommended.
Sample Port: Sampling port must capture the free-falling
effluent, downstream of the treatment system.
Venting: This system pumps air into a controlled space and
requires a venting system or the system will not function
properly and cause undue stress on various components. Install
a 4” PVC pipe vent, exiting through the outlet riser brought
above grade and capped with the supplied green atrium vent
cap (or equivalent).
A charcoal filter, if used, should be installed on top of vent pipe.
7. Plumb Air Distribution System
Plumb in the air distribution system. Prime and solvent weld all
connections. Bring ¾-inch Schedule 40 PVC line out of the tank
through the riser sidewall. Extend PVC air distribution piping
from the riser to where the aerator will be located. A minimum
of 12” of ground cover is recommended over the air distribution
piping. Connect the aerator to the PVC distribution piping
When connecting a linear aerator, attach ½” to ¾” Rubber Hose
Adapter to the aerator outlet using the supplied hose clamps.
Next, attach the ¾-inch PVC air distribution pipe to the ½” to ¾”
Rubber Hose Adapter using the supplied hose clamp.
8. Aerator Placement
The aerator should be installed near the control panel (if
applicable) and within 100 ft. of the treatment plant. The aerator
can be installed outdoors or in a clean, well-ventilated area, such
as a tool room, garage, etc., if allowed by state/local regulations.
The location should be easily accessed and regularly observed
to insure proper continual operation. Do not install the aerator(s)
in a low-lying area where water may accumulate. If an aerator
is to be installed in an additional, well ventilated enclosure, the
enclosure must be approved by Delta Treatment Systems in
writing.
9. Control Panel (optional for EA52.5, required for EA75)
Note: The EA52.5 is supplied with the HP60A aerator as
standard equipment that includes an integrated pressure
switch, audible and visual alarm. The HP60A aerator assembly
eliminates the need for a control panel with the EA52.5. All other
models will require use of control panel.
Mount the control panel in a location where the alarm can be
heard and be readily observed. The control panel must be
connected to a 20-amp maximum electrical source equipped

Delta Treatment Systems • 9125 Comar Drive, Walker, LA 70785 • [phone] • www.infiltratorwater.com 9
INSTALLATION INSTRUCTIONS
with a ground fault interrupter (GFI) circuit breaker. Install a
power disconnect switch to the panel that is operable and
available to a maintenance provider. The control panel must be
grounded by connecting the source ground wire to the ground
location in the panel. All electrical work shall be done according
to NEC and state/local code requirements with a licensed
electrician where required.
A. Attach control panel to a suitable mounting surface. Use
appropriate screws for all four mounting holes on the back
of the enclosure.
B. The control panel contains a fuse or circuit breaker for the
aerator. An electrical malfunction in the aerator, or wiring
to the aerator, will cause the fuse or circuit breaker to blow.
The control panel also contains a pressure switch and
visual and audible alarms. Loss of air pressure caused by
aerator system malfunction, or a high-water level in the
treatment treatment system, will cause the alarm to sound
and light to illuminate.
C. The control panel is rated for outdoor service. However,
do not place the panel in an area that can be immersed in
rising water or where runoff from a roof, storm drain, etc.
may collect. Do not mount the panel where it is subject to
wetting from sprinklers, hoses, etc.
D. Connect conduit. After properly mounting the control
panel, connect the conduit and install wiring as shown on
the control panel drawings (schematics).
E. Connect the pressure air tubing to the 1/8” barb-fitting in
the air piping system. The air tubing should be protected
by conduit as shown on the drawing.
10. System Startup
Once the treatment system water level reaches the outlet tee,
turn power on to aerator or control panel if applicable. Aerator
should power on and begin making a quiet humming sound and
the aeration chamber should begin to bubble.
If applicable, set the high level pressure switch in the control
panel. Note: If your installation is using the HP60A this step is
not necessary.
Complete filling the treatment system and power on the aerator.
Using a properly sized screwdriver, turn high level alarm
adjustment screw clockwise until alarm sounds. Then turn the
screw counterclockwise until alarm stops.
A. Check air piping joints for leakage by spraying the joints
with a soapy water solution. Repair if necessary and
then carefully backfill around air distribution piping and
treatment systems.
B. Recheck water level in the treatment system.
C. Finish grade the site. Divert surface water away from
the system and install or plant ground cover to prevent
erosion.
D. The treatment system is ready to receive incoming
sewage. No special start-up procedures are required. The
process is naturally occurring and does not require any
special additives.
E. Test alarm circuit by momentarily squeezing air tubing and
allowing air pressure to decrease. This should take a few
minutes. Alarm should occur. Release air tubing and alarm
should stop.
F. In the event that a fuse blows, replace with time delay or
slow blow, 125 volt minimum voltage rating and the same
amp rating as the existing fuse.
G. Replace and secure all treatment system access lids.
Close up the enclosure door on control panel and lock if
applicable
H. Spend time with your customer whenever possible. Review
operation instructions and provide the customer with a
copy of the operation and maintenance and homeowner’s
sections of this manual. This saves valuable time avoiding
return visits.

INSTALLATION INSTRUCTIONS: VENT AND SAMPLE PORT INSTALLATION
Delta Treatment Systems • 9125 Comar Drive, Walker, LA 70785 • [phone] • www.infiltratorwater.com
10
There are two (2) options for the location of the vent. The preferred vent location is through the riser.
Examples of sample ports and vents.
4" ATRIUM VENT AND
OPTIONAL SAMPLE PORT
TO DISCHARGE
4" ATRIUM VENT
THROUGH RISER
TANK TANK
TO DISCHARGE
4" PVC
4" PVC
INFILTRATOR
EZsnap RISER INFILTRATOR
EZsnap RISER
MIN. 6"
PORT DEPTH
IM-1060 TANK W/
ENVIRO-AIRE AEROBIC TREATMENT UNIT
AERATION
CHAMBER
PRIMARY
CHAMBER
4" PVC
AERATOR
CLARIFIER CHAMBER
VENT
4" PVC TO DISCHARGE

Delta Treatment Systems • 9125 Comar Drive, Walker, LA 70785 • [phone] • www.deltatreatment.com 11
TROUBLE SHOOTING
AIR SUPPLY MALFUNCTION
1. Check to be sure the air manifold are working properly. It
should be bubbling evenly and forcefully. A septic (rotten egg)
odor could mean that the system is not getting enough air. If the
the air manifold is not working, partially working (slight bubbles),
check the following:
a. Check to be sure the aerator is working.
• check to see if the GFI has been tripped
• check the electrical source
• if electrical source is OK, check service guide
for aerator troubleshooting information
• wash air filter on aerator
• consult manufacturer for servicing information
b. Check to be sure treatment system is not severely out of
level. Air follows a path of least resistance.
c. Check for broken or cracked air lines both outside and
inside the treatment system.
d. Ants will destroy an aerator. Check to see if there is an ant
nest around the aerator.
e. Always check to see if inlet and outlet lines are correctly
installed.
2. Alarm does not occur when aerator is off:
a. Malfunctioning light or buzzer – replace.
b. Malfunctioning pressure switch – replace.
INTERNAL ASSEMBLY MALFUNCTION
1. Raw, untreated sewage from the aeration chamber (bubble
zone) should not enter the clarifier (quiet zone) because of
improperly installed or loose baffles. Check the treatment
system to make sure construction is correct.
2. Check to be sure all internal piping and connections are tight.
DESIGN OVERLOAD
1. The system could be hydraulically overloaded (there is too
much water going through the system for the size of the system).
2. The system could be organically overloaded (there is too
much waste for the size of the system).
VISUAL INSPECTION
1. Water in the aeration chamber (bubble zone) should be the
color of chocolate milk. Blue or gray/blue water indicates heavy
use of detergents or other chemicals. If water appears sudsy,
there is too much detergent being used.
2. Water in the clarifier (quiet zone) should be clear, although
scum and debris may appear on the surface; this is normal.
Water enters the discharge tee 16 inches below water surface.
3. Do not allow excess amounts of oil and grease to enter the
system. Grease tends to form in white balls.
TROUBLESHOOTING ELECTRICAL SYSTEM
1. Reset GFI outlet if applicable.
2. Confirm aerator has power and confirm power is reaching
electrical components.
3. Aerator does not run: Check main service for power.
4. Alarm occurs continuously even when aerator is running:
a. Air leak in main air system or air tubing to pressure switch –
repair leak or replace air line.
b. Malfunctioning pressure switch – replace.
c. High water level in treatment system – inspect for cause.
NOTE: All replacement parts are available from your local dealer.
CAUTION: Electrical shock or hazard may occur if unit is
not serviced properly. The manufacturer recommends that a
licensed electrician be called when electrical problems occur.
COMPONENT REPLACEMENT PROCEDURE
• Aerator: Follow the same procedure as outlined in the
“Installation Instructions”.
• Pressure Switch (if applicable): Turn all power off to the
control panel. Remove control panel mounting. Remove screws
securing pressure switch as well as connectors and tubing.
Reverse procedure to install new pressure switch.
• Audible Alarm: Turn all power off to the control panel. Remove
screw attaching alarm to panel as well as connectors. Reverse
procedure to install new alarm.
• Alarm Light Holder: Turn all power off to control power.
Remove lock nut securing light holder as well as connectors.
Remove lamp holder. Install new light holder with gaskets
furnished. Continue with reverse procedure.
• Alarm Light Bulb: Turn all power off to control panel. Remove
red light cover. Remove and replace bulb, which is a push-in
type. Replace light cover and cover gasket.
• Circuit Breaker: Turn all power off to control panel. Remove
fasteners securing circuit breakers as well as connectors.

Delta Treatment Systems • 9125 Comar Drive, Walker, LA 70785 • [phone] • www.infiltratorwater.com
12
SPECIFICATIONS
Treatment
Plant
Treatment
Capacity (gpd)
Total
Volume (Gal)
Primary Volume
(Gal)
Aeration
Volume
(Gal) Clarifier Volume (Gal)
EA50 500 1,113 346 584 186
EA52.5-IM1060 525 1,142 350 597 195
EA60* 600 1,670 512 879 279
EA75 750 1,670 512 879 279
EA75-IM1530 750 1,604 515 813 276
EA80 800 1,804 550-750 935 319
Model Aerator
Motor full load
Amps
Measured
Operating Watts
Electrical
Requirements
EA50 HP60A
About 2.1 CFM at 2.13 PSI* 1.3 51 115 volt – single phase
EA52.5 HP60A
About 2.1 CFM at 2.13 PSI* 1.3 51 115 volt – single phase
EA60 HP80
About 2.8 CFM at 2.13 PSI* 1.6 71 115 volt – single phase
EA75 HP100L
About 3.5 CFM at 2.13 PSI* 1.9 75 115 volt – single phase
EA80 HP100L
About 3.5 CFM at 2.13 PSI* 1.9 75 115 volt – single phase
* May be installed in an IM-1530 or concrete tank.
The incoming power supply to the Delta Supplied Control Panel and Equipment must be verified prior to it being energized.
Incoming power shall match Delta Supplied Equipment’s ratings. Refer to motor nameplates and Control Panel wiring diagram for
amperage and voltage verification. The contractor is responsible to ensure that proper power, wiring, conduit, metering equipment,
and weather proof connections are installed according to the engineer’s specifications, local codes, and the NEC.
ELECTRICAL REQUIREMENTS
TROUBLE SHOOTING
GENERAL COMMENTS
• Only factory approved equipment can be used for replacement
on individual treatment systems.
• If the decision is made to pump out a system, be sure to
contact a licensed waste hauler.
• If a chronic problem develops and all items have been
checked, consult Delta Treatment Systems or an authorized
representative.
• Keep good records.
*PSI is relative to the water depth within the tank.

Delta Treatment Systems • 9125 Comar Drive, Walker, LA 70785 • [phone] • www.infiltratorwater.com 13
FLOW DIAGRAM
MINIMUM SPECIFICATIONS – EA50, EA60, EA75 AND EA80 IN CONCRETE TANK ONLY
PRIMARY CHAMBER AERATION CHAMBER
CLARIFIER CHAMBER
INFLUENT IN EFFLUENT OUT
GRADE ELEVATION
AIR IN
NOTES
1. Install tank per precaster instructions.
2. If precast dimensions are outside the minumum dimensions, contact Delta for review.
3. For designs with treatment capacities greater than 800 gpd, contact Delta for review.
AERATOR
CP23 CONTROL PANEL
3/4" SCH. 40 AIR LINE
ATRIUM VENT AND
OPTIONAL SAMPLE PORT
4" SCH. 40
3034 TEE
61" MIN. 61" MIN.
60" MIN.
58" MIN.
3/16" AIR
DIFFUSER
48"
PRIMARY
CHAMBER
AERATION
CHAMBER
CLARIFICATION
CHAMBER
4" SCH. 40
3034 TEE AIR
LINES
ESTABLISH VEGETATIVE
COVER AND DIVERT
SURFACE DRAINAGE
2 1/2"
3 1/4"
TO DRAINFIELD
OR PUMP TANK
46°

Delta Treatment Systems • 9125 Comar Drive, Walker, LA 70785 • [phone] • www.infiltratorwater.com
14
SPECIFICATIONS EA52.5-IM-1060 ONLY LAYOUT
SPECIFICATIONS E60 AND E75 IM-1530 LAYOUT
NOTE: Vent must be installed. See page 10 for options.
NOTE: Vent must be installed. See page 10 for options.
175.6" EXTERIOR LENGTH 62.2" EXTERIOR WIDTH
36"
44" INVERT
6" OPENING
47" INVERT
24" ACCESS
16"
6"
3"
6" 6" 6" 6"
51°
A
A
SECTION A-A
AERATION
CHAMBER
CLARIFIER
CHAMBER
4" PVC
INLET
OUTLET
PARTITION BAFFLE
4 FIBERGLASS
SUPPORT POSTS
(TYP.)
DIFFUSER PARALLEL
WITH TANK WALL
3/4" PVC (TYP.)
SLOPED
BAFFLE
CLARIFIER BAFFLE
INSTALL EZsnap RISERS
TO GRADE AS SPECIFIED
AERATOR
CONTROL PANEL
3/16" AIR
DIFFUSER
(X5)
FIBERGLASS
SUPPORTS
3/4" PVC
(TYP.)
54.7"
EXTERNAL
HEIGHT
PRIMARY
CHAMBER
42"
3/16" AIR
DIFFUSER
ATRIUM VENT
4" PIPE ASSEMBLY
WITH ELBOW AND
GROMMET
AERATOR
PRIMARY
CHAMBER
AERATION
CHAMBER
CLARIFICATION
CHAMBER
SLOPED
BAFFLE
51°
CLARIFIER
BAFFLE
44" INVERT
47" INVERT
DIFFUSER
PARALLEL WITH
TANK WALL
127.0" EXTERIOR LENGTH
ATRIUM
VENT
INSTALL EZSNAP RISERS
TO GRADE AS SPECIFIED
6"
OPENING
FIBERGLASS
SUPPORT POSTS (X2)
3/16" AIR
DIFFUSER
PARTITION
BAFFLE
16"
43"
4" 90°
PVC 3/4" PVC (TYP)
24" ACCESS

Delta Treatment Systems • 9125 Comar Drive, Walker, LA 70785 • [phone] • www.infiltratorwater.com 15
CP2305RI – SCHEMATIC
(HIGH PRESSURE)
(LOW PRESSURE)
PS
RECEPTACLE
COMPRESSOR
CB1
G
LT1
*
*
PS
NATIONAL ELECTRICAL CODE
COMPRESSOR SIZE PER
SIZE VARIES WITH
GFI RECEPTACLE
R
CP-2305R1
TO 120VAC
CIRCUIT PROTECTION REQUIRED. BY OTHERS.
EXTERNAL DISCONNECT AND BRANCH
15AMP MAX
Bring plant to operating water level with compressor on.
Using properly sized screw driver, turn high level alarm adjustment screw clockwise
until alarm occurs, then turn the screw counter-clockwise until alarm stops.
Setting High Level Pressure Switch
BUZZ
120V GFI RECEPTACLE
CONTROL PANEL
MAIN POWER CORD
(BY OTHERS)
AIR LINE
TO COMP.
SWITCH
HIGH LEVEL ALARM
ADJUSTMENT SCREW
PLANT
PRESSURE SWITCH
CLEAR TUBING TO
THE COMPRESSOR
COMPRESSOR CORD
PRESSURE
SILENCE
SWITCH
RECEPTACLE
BUZZER
SWITCH
COMPRESSOR
PRESSURE
TREATMENT
COMPRESSOR
WALL MOUNT
FLANGE
LOCKING
HASP
OUTDOOR
NON METALLIC
ENCLOSURE
SPLIT PLUG
COMPRESSOR
TUBING TO
POWER CORD
FROM
COMPRESSOR
PLUG INSTALLATION
SPLIT PLUG
Part Number Description
CL-100R Light
BUZZER Audible Alarm
5AMP BREAKER Push to reset Circuit Breaker

Delta Treatment Systems • 9125 Comar Drive, Walker, LA 70785 • [phone] • www.infiltratorwater.com
16
INSTALLER CHECKLIST
Owner: _______________________________________________ Date of Inspection: ______________________________________________
Mailing Address: ______________________________________________________________________________________________________
Model: ________________________________________________ Model Serial No.: ______________________________________________
System Address: _____________________________________ Lot # (if applicable): _____________________________________________
Phone Number: _____________________________ WW Permit No. (if applicable): ______________________________________________
Designer/Engineer: ___________________________________ Contact Information ______________________________________________
Authorized Installer:___________________________________ Contact Information ______________________________________________
Number of Bedrooms: _____________________________ Number of Occupants: ______________________________________________
Treated Effluent Dispersal Method: ______________________________________________________________________________________
Verify the following:
Treatment Unit
n NSF certification labels present (2 locations).
n All treatment systems installed level.
n All piping properly covered and compacted.
n Ventilation intake(s) properly located and installed.
n Treatment system filled with water (if water source available).
n Visually check aeration.
Controls
n Proper wire size as per code.
n Appropriate diagrams left in panel.
n All electrical connections in panel are secure and correct
connections used in junction box.
n Panel wired per manufacturer’s wiring diagram.
n Control panel start-up procedures have been followed as per
Installation Manual.
Final Safety Inspection:
n Lid secured on all splice boxes.
n All access risers in place and secure.
n Access port covers secured.
n Control panel on and set for automatic operation.
n Control panel secured.
Salcor 3G Ultraviolet Unit (if applicable)
n 3G Unit installed level.
n Inlet & Outlet connection properly glued.
n 4” riser pipe at proper level.
n Disinfection sub-assembly properly installed.
n Visually check flow.
n Electrical wiring properly connected using correct wire nuts.
n LED light inside junction box on when power is connected.
Norweco Bio-Dynamic LF Unit (if applicable)
n LF Unit installed level.
n Inlet and outlet connection properly glued.
n Finished grade at least 6” below the top of riser.
n Finished grade slopes away for surface drainage.
n Feed tube filled and properly installed.
n Treated effluent flows through tablet feeder.
n Test the chemical application using chlorine test kit.
Homeowner’s Package (and manual) has been reviewed
with homeowner by (check one):
n Installer n Service Provider n Dealer

Delta Treatment Systems • 9125 Comar Drive, Walker, LA 70785 • [phone] • www.infiltratorwater.com 17
SERVICE PROVIDER CHECKLIST
Service Provider Checklist
Owner: ___________________________________________ Date of service call: _________________________
System Address: ___________________________________ Lot # (if applicable): _________________________
Mailing Address: ___________________________________ Model: ____________________________________
____________________________________ Model Serial No.: ___________________________
Phone Number: ___________________________________ WW Permit No. (if applicable): ________________
Service Provider: ___________________________________ Contact Information _________________________
Yes
No
Primary Tank
Yes
No
Discharge/Pump Tank (if present)
Pump out required, sludge level _____ (in)
Pump out required, sludge level _____ (in)
Air vents installed and operational
Air vents installed and operational
Inspect basin/tank for infiltration and level
Inspect basin/tank for infiltration and level
Yes
No
Flow Equalization Tank (if present)
Floats operating and properly set
Pump out required, sludge level _____ (in)
Pump verification (Manual/Automatic)
Air vents installed and operational
Yes
No
Control Panel/Blower
Inspect basin/tank for infiltration and level
Inspect controls and wiring
Floats operating and properly set
Blower working, providing proper aeration
Pump verification (Manual/ Automatic)
Alarm functioning properly
Yes
No
Treatment Tank
Timer settings are correct
Pump out required, sludge level _____ (in)
Accessible and in good condition
Air vents installed and operational
Air filter cleaned, dried and reinstalled
Vigorous aeration in reactor box
Yes
No
Other
Inspect media for proper biomass growth
Effluent Sample Taken, if applicable
Inspect basin/tank for infiltration and level
Oil and grease deposits present
Floats operating and properly set if present
Effluent filter cleaned and properly reinstalled,
if applicable
Inspection of Effluent
Effluent odor: £ Earthy £ Musty £ Pungent £ Septic
Effluent color: £ Brown £ Grey £ Cream £ Black £ Clear
Final Safety Inspection:
£ Lid secured on all splice boxes
£ All access risers in place and secure
£ All access port covers in place and secured
£ Control panel is set for automatic operation and secured
System Notes and Recommendations: ____________________________________________________
____________________________________________________________________________________
____________________________________________________________________________________
____________________________________________________________________________________

Delta Treatment Systems • 9125 Comar Drive, Walker, LA 70785 • [phone] • www.infiltratorwater.com
18
TREATMENT PLANT DATA PLATES
Data plates are affixed to the control panel and aerator. The serial numbers must match.
2”x4”
3”x4”
1-7/8”x4” (optional)

Delta Treatment Systems • 9125 Comar Drive, Walker, LA 70785 • [phone] • www.infiltratorwater.com 19
DELTA TREATMENT SYSTEMS, LLC (“DELTA”)
DELTA TWO (2) YEAR MATERIALS AND WORKMANSHIP LIMITED WARRANTY
(a) This limited warranty is extended to the end user of a Delta ECOPOD®Delta Whitewater and Delta EnviroAire Series Advanced
Wastewater Treatment System (the “Delta Product”). A Delta System manufactured by Delta, when installed and operated in
accordance with Delta’s installation instructions and local regulation by a licensed installer, is warranted to you: (i) against defective
materials and workmanship for two (2) years after installation. Delta will, at its option, (i) repair the defective System or (ii) replace
the defective materials. This Warranty does not cover any damage caused by flooding, abuse, unauthorized disassembly, improper
wiring or overload protection. This Warrants does not cover any of the house wiring, plumbing, drainage or disposal systems
(b) In order to exercise your warranty rights, you must notify Delta in writing at its corporate headquarters in Walker, Louisiana within
fifteen (15) days of the alleged defect. Delta reserves the right to inspect the item to confirm that it is defective.
(c) YOUR EXCLUSIVE REMEDY WITH RESPECT TO ANY AND ALL LOSSES OR DAMAGES RESULTING FROM ANY CAUSE
WHATSOEVER SHALL BE SPECIFIED IN SUBPARAGRAPH (a) ABOVE. DELTA SHALL IN NO EVENT BE LIABLE FOR ANY
CONSEQUENTIAL OR INCIDENTAL DAMAGES OF ANY KIND, HOWEVER OCCASIONED, WHETHER BY NEGLIGENCE OR
OTHERWISE. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES,
SO THIS LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS AND
YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE.
(d) THIS LIMITED WARRANTY IS THE EXCLUSIVE WARRANTY GIVEN BY DELTA AND SUPERSEDES ANY PRIOR, CONTRARY,
ADDITIONAL, OR SUBSEQUENT REPRESENTATIONS, WHETHER ORAL OR WRITTEN. DELTA DISCLAIMS AND EXCLUDES TO
THE GREATEST EXTENT ALLOWED BY LAW ALL OTHER WARRANTIES, WHETHER EXPRESS OR IMPLIED, OR STATUTORY,
INCLUDING ANY WARRANTY OF MERCHANTABILITY, FINESSE FOR A PARTICULAR PURPOSE AND ANY IMPLIED WARRANTIES
OTHERWISE ARISING FROM COURSE OF DEALING, COURSE OF PERFORMANCE, OR USAGE OF TRADE. NO PERSON
(INCLUDING ANY EMPLOYEE, AGENT, DEALER, OR REPRESENTATIVE) IS AUTHORIZED TO MAKE ANY REPRESENTATION OR
WARRANTY CONCERNING THIS PRODUCT, EXCEPT TO REFER YOU TO THIS LIMITED WARRANTY. EXCEPT AS EXPRESSLY
SET FORTH HEREIN, THIS WARRANTY IS NOT A WARRANTY OF FUTURE PERFORMANCE, BUT ONLY A WARRANTY TO REPAIR
OR REPLACE DEFECTIVE COMPONENTS.
(e) YOU MAY ASSIGN THIS LIMITED WARRANTY TO A SUBSEQUENT PURCHASER OF YOUR HOME.
(f) NO REPRESENTATIVE OF DELTA HAS THE AUTHORITY TO CHANGE THIS LIMITED WARRANTY IN ANY MANNER WHATSOEVER,
OR TO EXTEND THIS LIMITED WARRANTY BEYOND THE STATED TWO (2) YEAR TERM.
(g) NO WARRANTY OF ANY KIND IS MADE WITH REGARD TO ANY PRODUCT, COMPONENTS, DEVICES, MEDIA OR TREATMENT
UNITS WHICH ARE MANUFACTURED BY OTHERS AND ARE INSTALLED IN CONNECTION WITH THE ECOPOD® PRODUCT. USE
OF THESE PRODUCTS ARE AT YOUR OWN RISK.
CONDITIONS AND EXCLUSIONS
There are certain conditions or applications over which Delta has no control. Defects or problems as a result of such conditions or
applications are not the responsibility of Delta and are NOT covered under this warranty. They include failure to install the ECOPOD®
Product in accordance with instructions or applicable regulatory requirements or guidance and altering the ECOPOD®Product contrary
to the installation instructions.
WARRANTY

K4623 1222
Contact Delta Treatment Systems’ Technical Services Department for assistance at [phone]
DELTA TREATMENT SYSTEMS, LLC
9125 Comar Drive, Walker, LA 70785
[phone]
www.infiltratorwater.com
[e-mail]
© 2022 Delta Treatment Systems. All rights reserved. Printed in U.S.A.