Enviro AES-TSA User manual

ENVIRO-SEPTIC SYSTEM GUIDE
Owner’s Guide
Enviro-Septic®System
AES-TS Model
Class II –Secondary treatment level
and
AES-TSA Model
Class III –Advanced secondary treatment level
Residential Application
Province of Quebec
System certified by: Bureau de normalisation du Quebec
Standard: NQ 3680-910
© DBO Expert inc.
All rights reserved
Version 2.2.3
July 8th 2013

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July 30th, 2013 1
Important Security instructions
It is extremely dangerous even potentially deadly to open a septic tank,
pumping station or any enclosed space that is part of a wastewater treatment
system. This work must be done by a person trained in enclosed space
working and rescue procedures who has the necessary equipment.
The action of the bacteria on the organic matter present in the wastewater
produces gases such as carbon gas (CO2), methane gas (CH4) and sulphuric
hydrogen (H2S). The H2S present in the septic tank or a pumping station can
cause the death of an individual in a matter of minutes. This is why this work
must be left to competent personnel.
Pipes are buried near your septic installation. Please speak to your contractor
or the technical service of DBO Expert inc. in order to take the necessary
precautions before digging or undertaking excavation jobs near your septic
system.
Please be sure that the covers of the septic tank, pumping station, piezometers
and sampling device are always in place and that they remain accessible at all
times for periodic inspections and interventions when necessary. (e.g.
emptying of the septic tank). The same applies for distribution boxes of
systems built after 2009 as well as those which had an accessible distribution
box before that time.
Advanced Enviro-Septic®comes with a manufacturer’s limited warranty. The
warranty details are presented in Appendix A.
Advanced Enviro-Septic®U.S. Patent numbers. 6,461,078; 5,954,451; 6,290,429;
6,899,359; 6,792,977; 7,270,532 and 5,606,786. Other patent pending.
Enviro-Septic®is a trademark of Presby Environmental, Inc.
Advanced Enviro-Septic®is a trademark of Presby Environmental, Inc.
Bio-Accelerator®is a trademark of Presby Environmental, Inc.

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Table of Contents
Introduction 3
The purpose of this document 3
Designation of the Enviro-SepticSystem 3
Definition of the Enviro-Septic System 4
What to do if a problem occurs? 4
Customer service and Technical support information 4
System tag 5
Certified Contractor 5
Enviro-Septic System Capacity 6
Residential Wastewater 7
Warranty certificate 7
Functioning of the Enviro-Septic System 8
Treatment process of the Enviro-Septic system 8
Diagram of the Enviro-Septic chain of treatment 8
Enviro-Septic System Components 10
Operating the Enviro-Septic System 12
Initial Use 12
Intermittent Use or Prolonged Absences 12
Enviro-Septic System Operating Instructions 13
Wastewater Volume 13
In the bathroom 14
In the kitchen 14
For the laundry 14
Elsewhere in and around the house 15
Chemicals for septic installation 15
Ventilation 15
Heavy machinery and motorized vehicle traffic 16
Vegetation 16
Enviro-Septic System Maintenance 17
Distribution box and flow equalizer 17
Embankment surface above the Enviro-Septic System 20
Owner’s Responsibilities 21
Measuring the Water Levels in the Piezometers 22
What to do if water level is high 23
Appendix A- Presby Twenty Year Limited Warranty 24
Appendix B - Information Specific to Your Treatment System 25
Appendix C –Register of the height of water in the piezometers 26
Appendix D –Register of the Septic Tank Maintenance 27

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Introduction
Congratulations! You have chosen the Enviro-Septic System for your septic
installation. This system was developed to efficiently treat domestic
wastewater. However, instructions must be followed in order to maintain its
treatment performance so that you can make use of it for many years.
We ask that you carefully read through this document and keep it in your files
for future reference.
The purpose of
this document
This user guide explains the proper use, procedures and inspections required
in order to ensure the proper operation and longevity of an Enviro-Septic
System for residential wastewater treatment.
Please note that it is the owner’s responsibility to ensure that the system is
used properly and according to its treatment capacity. It is also his
responsibility to respect the rules and regulations in effect, especially the Law
of the quality of Environment and the Q-2, r.22 regulation1on wastewater
treatment and evacuation.
Designation of
the Enviro-
SepticSystem
Name: Enviro-Septic®System
Model: ESP-TSA and ESP-TS
Application Domain: Residential Wastewater (sewage).
Class and treatment type: The Enviro-Septic system meets all the
requirements of the NQ 3680-9102standard for class III –advanced
secondary treatment systems or class II –secondary treatment systems in
Quebec.
The system cannot be used to treat wastewater to make it consumable. It is
made to treat residential wastewater to an acceptable level for it to be
reintroduced into the environment according to the criteria prescribed in the
Q-2, r.22.
1
The Q-2, r.22 regulation was previously known as the Q-2, r.8. It is available on the Quebec Government site of the
“Ministère du Développement durable de l’Environnement et des Parcs”, at the address: www.mddep.gouv.qc.ca/eau/eaux-
usees or through the “Publication du Québec”
2
NQ 3680-910 standard, Wastewater treatment –Stand-Alone Wastewater Treatment Systems for isolated Dwellings,
Bureau de Normalisation du Québec, 2000-06-16

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Definition of
the Enviro-
Septic System
The Enviro-Septic system is a passive technology that facilitates the growth
of bacteria responsible for wastewater treatment. It is composed primarily of
two inseparable components: the rows of Advanced Enviro-Septic pipe and a
layer of system sand.
The Enviro-Septic system must be preceded by a septic tank and a wastewater
distribution device. The treated water is drained directly into the soil beneath
the treatment system through a soil absorption system as described in the Q-2,
r.22 regulation: a leaching field for class II systems or a polishing leaching
field for class III systems. They can also be discharged directly to a river if
this type of discharge is allowed.
What to do if a
problem
occurs?
If in the course of normal use of your septic system you notice any of the
following problems:
•Presence of abnormal odours in the house, around the septic system or
emanating from sources of drinking water.
•Abnormally wet soil, presence of persistent puddles or odours in the
area of the septic tank or the Enviro-Septic system.
•Slow flushing toilets or other plumbing in the home.
•Presence of abnormally abundant vegetation on the surface or around
the septic tank or the Enviro-Septic system installation.
•Flooding in the area where the Enviro-Septic system is installed.
•Erosion of the land fill on or around the Enviro-Septic system.
•Alarm from the pumping station if such a device is part of your
installation.
If you notice one of these problems, immediately contact your contractor or
the customer service of DBO Expert Inc. 1-866-440-4975. Please have
available the information from Appendix B –Information Specific to Your
Treatment System –of the present guide.
Warning: Please note that the situations described above can affect any
septic system, whether it is an Enviro-Septic system, any other certified
wastewater treatment technology or any soil absorption systems prescribed in
the Q-2, r.22 regulation. When these problems occur, they are usually caused
by poor installation, malfunction of the residence plumbing, extreme weather
or geological factors or surface water flowing into the septic system.
Customer
service and
Technical
support
information
Please contact us if you need further information.
Telephone: [phone] or [phone]
Fax: [phone]
Email: [email protected]
Internet site: www.enviro-septic.com

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System tag
Each Enviro-Septic system must be identified with a specific system tag. This
tag, similar to the one shown in figure 1, will be installed in the sampling
device access port. It will be added during the installation of the system. The
number shown at the bottom of the tag will help to identify your system.
The class of the system in place is indicated on the system tag.
Fig. 1
Certified
Contractor
The Enviro-Septic System must be installed by a contractor previously trained
by DBO Expert or one of its representatives to obtain a certificate of
authorised installer. The customer service of DBO Expert can provide the
name of contractors having the proper authorisation to install Enviro-Septic
Systems.

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Enviro-Septic
System
Capacity
The capacity of the Enviro-Septic System depends on two elements :
•The number of Advanced Enviro-Septic Pipes
•The capacity of the underlying soil to evacuate the treated water.
.
Tables 1 and 2 present the capacity of each system in relation with the
number of pipes installed for a 1 to 6 bedroom residence or other building
with a daily flow of 3240 L/d or less. The total volume of wastewater fed to
the system must not be more than what is shown in the table.
The system may also be limited by the capacity of the underlying soil to
permit the infiltration and evacuation of wastewater. This value should be
evaluated by the designer mandated to create the plans and estimates for your
septic installation. It is, therefore, important to verify with the designer if the
capacity of the soil permits complete infiltration and evacuation of the
maximum amount of water able to be treated by the pipes installed.
Table 1 –
Enviro-Septic
hydraulic
capacity based
on the number
of bedrooms of
an isolated
dwelling
Number of
bedrooms
Minimum Number of
Advanced Enviro-Septic®
Pipes
(3.05 m each)
Minimum Total
Length of Advanced
Enviro-Septic®Pipes
(m)
Maximum Hydraulic
Capacity (L/d)3
1
8
24,4
540
2
12
36,6
1080
3
15
45,8
1260
4
18
54,9
1440
5
22
67,1
1800
6
26
79,3
2160
3
The hydraulic capacities shown in table 1 are the same shown in the Q-2, r.22 regulation for 1 to 6 bedroom isolated
dwellings (clause 1.3). The difference between the minimum number of Advanced Enviro-Septic pipe for a similar daily flow
between table 1 and 2 come after different security factors that are associated with 1 to 6 bedroom house vs other types of
buildings.

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Table 2 –
Enviro-Septic
hydraulic
capacity based
on the number
of pipes
installed for
another type of
building
Maximum Daily
Flow
(L/d)
Number of Advanced
Enviro-Septic®Pipes
(3.05 m each)
Total Length of
Advanced Enviro-
Septic®Pipes (m)
540
8
24,4
810
10
30,5
1080
12
36,6
1260
15
45,8
1440
18
54,9
1620
20
61,0
1800
22
67,1
1960
24
73,2
2160
26
79,3
2280
28
85,4
2440
30
91,5
2600
32
97,6
2760
34
103,7
2920
36
109,8
3080
38
115,9
3240
40
122,0
Residential
Wastewater
Table 3 indicates the normal characteristics of raw domestic sewage.
Table 3
Parameter
Units
Raw Sewage
Septic Tank
Effluent
TSS
mg/L
237-600
50-90
CBOD5
mg/L
210-530
140-200
Fecal Coliform
CFU/100 ml
106-1010
103-106
Source: Tchobanoglous and Burton (1991)
Warranty
certificate
Advanced Enviro-Septic®comes with a manufacturer’s limited warranty. The
warranty details are presented in Appendix A.

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Functioning of the Enviro-Septic System
Treatment
process of the
Enviro-Septic
system
The rows of Advanced Enviro-Septic®pipes and system sand permit the
treatment and distribution of wastewater on the surface of the receiving soil
(surface of the polishing leaching field or the leaching bed).
The pipes support, first of all, the separation of particles through flotation and
decantation. The water is then evacuated through perforations situated all
around the pipes and through the pores of the three layers of synthetic media
covering the pipes. These membranes facilitate the fixation of the microbial
cultures which support wastewater treatment as well as longitudinal
distribution.
The layer of sand continues the treatment process and helps in dispersing the
water before it infiltrates into the natural soil. In this way, the Enviro-Septic
system integrates both functions of treatment and evacuation.
Diagram of the
Enviro-Septic
chain of
treatment
The chain of treatment varies according to the method of discharge used.
Figures 2.1 to 3.2 show the different options possible.
Underground evacuation
Figures 2.1 and 2.2 show the progress of the water along the complete chain
of treatment for a system using underground evacuation
Fig. 2.1 - Secondary Treatment System
Distribution
device
Enviro-Septic Secondary
Level Treatment System
Distribution
Device
Infiltration in the ground
Raw
Sewage Septic Tank Soil Absorption Field,
Seepage Bed or Above
Ground Sand Filter
Fig. 2.2 - Advanced Secondary Treatment System
Distribution
device
Enviro-Septic Secondary Advanced
Level Treatment System
Distribution
Device
Infiltration in the ground
Raw
Sewage Septic Tank Polishing Leaching Field

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Discharge to a Stream or River
Figures 3.1 and 3.2 show the progress of the water in the complete treatment
chain of a system using a direct discharge to a waterway.
Fig. 3.1 - Secondary Treatment System
Septic Tank
Treated Effluent in Accordance with the Q-2, r.22 Regulation
Raw
Sewage Distribution
Device
Water Collection Section
Enviro-Septic Secondary
Level Treatment System
Standard Sand Filter Bed
Fig. 3.2 - Advanced Secondary Treatment System
Septic Tank
Treated Effluent in Accordance with the Q-2, r.22 Regulation
Raw
Sewage Distribution
Device Water Collection Section
Enviro-Septic Secondary Advanced
Level Treatment System

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Enviro-Septic System Components
Your septic installation includes several components. All of these components
are part of the chain of treatment of your installation. Table 4 presents the list
of these elements. However it should be noted that some of these are only
used when site conditions require them.
The table also presents a summary of inspections required for each
component. More detailed information on this subject is presented in the
sections that follow.
Fig. 4 - Diagram of the Enviro-Septic system
Septic Tank
Water infiltration
Rock, Clay or Watertable
Exit Vent
Pipe Offset Adapter
Enviro-Septic Treatment System
System Sand
Row of Advanced Enviro-Septic®Pipes
Pipe Couplings
Ventilation pipes connected to a vent
Piezometers
Pipe Double Offset Adapter
Top soil with grass
Enviro-Septic Pipe
Polishing
Leaching Field
Distribution Device
(e.g. Distribution Box)

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Table 4 - Enviro-Septic System Components
Components of the
septic system
Function
Follow-up
needed
Frequency
Responsible for
follow-up
Septic tank
Primary wastewater
treatment
Periodic emptying
According to
standards and
regulations in
effect
Owner is res-
ponsible to have
work done by
qualified person
Septic Tank Effluent
Filter4
To retain solids larger
than the maximum
openings of the filter.
According to manufacturer’s instructions.
Distribution systems
3 options
To distribute the septic
tank effluent to the rows
of Advanced Enviro-
Septic®.
A) Distribution
box and flow
equalizers
A) According to
water level in the
piezometers
A) As needed
A) Owner
B) Pressure
distribution
(feed) system
B) According to the manufacturer’s directions.
C) Automatic
distributing
valve
C) According to the manufacturer’s directions.
Rows of Advanced
Enviro-Septic®Pipes.
To distribute and treat
wastewater
See piezometers
Piezometers
To indicate the level of
water in the rows of
pipes.
Measure water
levels
Once or twice a
year as a
preventive
measure, before
emptying the
septic tank
Owner or
qualified person
Sampling device
To verify the treatment
performance of the
Enviro-Septic System
Ensure that there
is access to this
device
Optional
Qualified person
Vent
To allow the circulation
of air in the Enviro-
Septic System
Ensure that the
opening is not
blocked
As needed
Owner
System sand
To complete the water
treatment process and to
improve the drainage
No
Pumping station
(optional)
To lift septic tank
effluent to the Enviro-
Septic System
According to supplier’s specifications
4
The effluent filter is necessary whenever the septic tank is followed by a low pressure distribution system. It is also
mandatory in all BNQ certified septic tanks made since January 1st, 2009.

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Operating the Enviro-Septic System
Initial Use
At the time of installation, the septic tank must be filled with clear water.
If a pumping station is used, the contractor will verify that it is functioning
properly at the time of installation. The home owner must make sure that
there is adequate electricity to safely operate the equipment as well as the
alarm component.
The Enviro-Septic system is now ready for use.
Intermittent
Use or
Prolonged
Absences
The Enviro-Septic system is a passive wastewater treatment system. When
properly installed, it requires no particular attention for intermittent use or in
the case of prolonged absence.

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Enviro-Septic System Operating Instructions
The use and the maintenance of an Enviro-Septic System are relatively
simple. In general, use of a reasonable amount of water in the residence and
respecting the following rules will allow you use of your installation without
problems for years to come.
In the following paragraphs, you will find the basic rules to follow to ensure
proper functioning of your Enviro-Septic System. For more details on this
topic, please consult the website of the MDDEFP and more specifically the
Good Practice Guide for owners of wastewater treatment systems5. You will
see that the following rules are essential to the proper functioning of any
septic system, regardless of the technology used.
To simplify understanding, these rules are presented to you as things to do or
not to do in each part of the house and outside around the house.
Wastewater
Volume
Large quantities of water that leave the house and enter the Enviro-Septic
System in a short period of time could have a negative impact on the
effectiveness of the treatment and the infiltration of wastewater. Large
quantities of water can cause agitation in the septic tank. A certain quantity of
sludge or scum is likely to be put into suspension and be brought towards the
Enviro-Septic system and the infiltration bed. The frequency of such events
must be minimized.
You must ensure that the volume of wastewater entering the septic tank and
flowing into the Enviro-Septic System is reasonable when compared to the
total daily flow the system was designed for.
After the installation, if changes are made to the residence (ex. addition of a
bedroom)6, please contact the designer of the Enviro-Septic System. Make
sure that the septic system is inspected by a qualified person to determine that
it has the necessary capacity to treat and infiltrate the new daily design flow
of wastewater being generated.
5
Ministry of Sustainable Development, Environment, Wildlife and Parks, Good Practice Guide for owners of
wastewater treatment systems - June 2011 http://www.mddep.gouv.qc.ca/eau / eaux-usees/Guide-bonnes-pratiques-proprio-
dispositifs.pdf
6
Adding a bedroom, a business at home, a reception room, conversion of the house to a bed and breakfast, etc.

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In the
bathroom
Do:
•Immediately repair any leaking faucet or toilet.
•Use a reasonable quantity of toilet paper.
Do not :
•Use disinfectant in tablet (puck) form, whether it is placed in the basin
or the tank.
•Throw cigarettes, cigarette butts or medication in the toilet.
•Throw paper towels, paper napkins or other personal hygiene products
in the toilet.
In the kitchen
Do:
•Repair any leaking faucet.
•Use dish soap or dishwasher soap that is low in phosphate (0 to 5%).
•Use the necessary quantity of soap to do the work. Take note that the
necessary quantity is often less than suggested by the manufacturer.
Do not :
•Use a food waste disposal unit in your sink that is connected to your
septic installation.
•Dispose of vegetables, meats, fat, oil, coffee beans, or other unassimilated
products into the septic system.
For the laundry
Do:
•Use phosphate free detergent, preferably in liquid form. If it is not
possible, use biodegradable powder detergent.
•Use the necessary quantity of soap to do the work. Take note that the
necessary quantity is often less than that suggested by the manufacturer.
•Minimize, when possible, the volume of water used for the laundry
according to the quantity of clothing to wash.
•If possible, spread your loads of laundry throughout the week as
recommended by MDDEFP for any septic installation7.
7
Ministry of Sustainable Development, Environment, Wildlife and Parks, Good Practice Guide for owners of
wastewater treatment systems - June 2011 http://www.mddep.gouv.qc.ca/eau / eaux-usees/Guide-bonnes-pratiques-proprio-
dispositifs.pdf

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Elsewhere in
and around the
house
Do:
•Divert drainage and rain water away from the surface of the Advanced
Enviro-Septic®System.
Do not :
•Discharge water softener backwash into your septic system.
•Discharge any water from swimming pool filters, spas or other appliances
that discharge chlorinated water into your septic system.
•Let water from sump pumps, roof drains (gutters) and drainage pipes
discharge into the septic system.
•Dispose of solvents, paints, antifreeze, engine oil, floor waxes, carpet
cleaners, drain cleaner or other toxic or flammable products in the septic
installation. This includes water used to wash brushes or rollers that were
used with latex paint (latex paint contains elements that are harmful to the
septic systems).
•Dispose of animal litter, tea bags, coffee grounds, egg shells, cigarette
butts, paper towels, condoms, diapers or sanitary napkins in the septic
installation.
Chemicals for
septic
installation
Your Enviro-Septic System does not require any starting chemical, cleaning
or other additives. The bacteria that carry out the treatment are naturally
present in raw domestic sewage. Any chemicals or additives added to the
Enviro-Septic System could possibly kill these bacteria.
Ventilation
It is very important to ensure that good ventilation occurs so that the septic
system functions correctly. The vent(s) installed at the ends of the septic
system encourage this air circulation. It is important to make sure that the
opening is not blocked and that air can circulate freely at all times. Air enters
through the vent, circulates through the rows of pipes and the septic tank and
travels through the plumbing of the house to exit through the roof vent.
The owner must be sure to have a roof vent and to keep it clear at all times.
When a pumping station is used, a bypass pipe or an extra vent must be used
to ensure proper ventilation of the system.

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Heavy
machinery and
motorized
vehicle traffic
No heavy machinery must be driven on a septic system, whether it is before,
during or after its construction. This includes any motorized vehicle. The
effectiveness of the drainage in the ground depends on the presence of a non-
compacted natural soil that is not saturated with water. Heavy machinery or
motorized vehicle traffic8on the soil closes the natural pores of the soil which
reduces its permeability and allows for pounding and the accumulation of
water.
Vegetation
The surface of the septic system must be planted with grass. The grass must
be cut regularly in order to encourage growth without the use of fertilizers.
Vegetation cover contributes to the elimination of nitrogen and phosphorus.
It is important not to plant trees or other plants with invasive roots within the
proximity of the septic installation (minimum distance 3 meters).
8
The Advanced Enviro-Septic®pipes installed according to manufacturer's recommendations can withstand the
weight of a vehicle not exceeding the standard H10, if such a vehicle were to move above the treatment system. The
occasional passage of a light vehicle such as a lawn tractor, is acceptable.

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Enviro-Septic System Maintenance
Septic Tank
Maintenance
The septic tank preceding the Enviro-Septic System must be pumped out
regularly. Article 13 of the Q-2, r.22 regulation requires that it is pumped out
every two years for normal residential use or every four years for seasonal
applications. For more information on septic tank maintenance, verify the
current regulation, or get in touch with the municipal authorities.
If the septic tank is not emptied regularly, an increasingly large amount of
solids and grease in suspension will leave the septic tank and end up in the
treatment system. The septic tank will no longer function properly and in time
the performance of the Enviro-Septic System may be affected. This is why
periodic emptying of the septic tank is necessary.
At all times, a professional using the proper equipment must carry out the
pumping out of a septic tank
The owner is responsible to ensure his septic tank is pumped out
according to local regulations. This work should always be done by a
qualified person since it can be very dangerous to open a septic system
without first taking the necessary precautions.
Note: It is the home owner’s responsibility to make sure that at all times
the septic tank lids are in their proper position and securely fastened. A
lid that is not installed correctly can be harmful to the operation of the
Enviro-Septic System.
Pre-filter
(Septic tank
effluent filter)
The effluent filter is a device normally used at the exit of the septic tank9. It is
mandatory when a low pressure distribution system is used between the septic
tank and the Advanced Enviro-Septic®pipes.
The effluent filter must be cleaned according to the maintenance and
inspection procedures provided by the manufacturer.
Distribution
box and flow
equalizer
During normal use of your septic system the distribution box and the flow
equalizers do not need adjustment. The initial levelling during installation and
the self-levelling capability of the flow equalizers are generally enough to
maintain an equal distribution of water among the rows of Advanced Enviro-
Septic®pipe. However, a difference of more than 100 mm between the lowest
and highest water level in the piezometers for two consecutive measurements
indicates that the equalizers may need adjustment. A qualified person must
then carry out the adjustment(s).
9
The effluent filter is necessary whenever the septic tank is followed by a low pressure distribution system. It is also
mandatory in all BNQ certified septic tanks made since January 1st, 2009.

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Advanced
Enviro-Septic®
Pipe Rows
Under normal use, the rows of Advanced Enviro-Septic®pipes do not require
maintenance. It is normal to find fluctuation of the water level in the pipes.
On the other hand, if the water level reaches 260 mm, a rejuvenation of the
Enviro-Septic System must be considered. A qualified person10 must carry
out this procedure.
Piezometers
No maintenance is required on the piezometers. However, the owner must
ensure that the caps are in place. They must be accessible at all times to
facilitate system inspection (they must not be buried).
Sampling
device
The Enviro-Septic System must have a sampling device. The sampling port, a
pipe of 200 mm in diameter11 closed off by a cap, must be accessible above
ground. It is normally located beside the rows of pipes, near the extremity fed
by water from the septic tank (see figures 5 and 6).
The owner must make sure that the sample port is always capped. It will be
used on occasion by an inspection technician to analyze the performance of
the Enviro-Septic System according to requirements in effect.
10
There may be costs related to this operation, if the problem is due to improper use of the system or due to a design or
installation problem.
11
The diameter of the sampling port constructed prior to 2009 is 100 mm.

User’s Guide
– –E En nv vi ir ro o- -S Se ep pt ti ic c S Sy ys st te em m
July 30th, 2013 19
Fig. 5 - Elements of the Enviro-Septic system installed in the ground
Enviro-Septic System Limits
D-Box
Sample Port Collector
Septic Tank
Piezometer
Vent
Enviro-Septic System
Fig. 6 - Elements of the Enviro-Septic system appearing above ground
D-Box cover
Sample port cover
Septic Tank Covers
Piezometer
Vent
Surface over the
Enviro-Septic System
Note: The position of the components may vary according to the layout
configuration. The dotted lines represent the position of the septic tank. The
position of the Enviro-Septic system is represented by the large rectangle.
These two elements are not visible from the surface.
Only the vents, the septic tank, the sampling device and the piezometer covers
are visible at the soil surface. The distribution box cover may be visible,
depending on the year of system installation, mostly since 2009.
If a pumping station is used, its cover will also be visible above the soil
surface.