Infiltrator Presby Advanced Enviro-Septic Design And Installation Manual Download

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Design and Installation Manual
for Advanced Enviro-Septic®

(AES)

Wastewater Systems

Missouri

Table of Contents

1.0 INTRODUCTION

1.1 State-Specific

Information

1.2 Background

1.3 System Components

2.0 SYSTEM DESIGN

2.1 System Sizing

2.2 Design Procedure

2.3 Design Examples

2.4 Design Specifications

2.5 System
Configurations

2.6 Pump Systems

2.7 Venting

2.8 Site Selection

3.0 INSTALLATION

4.0 REJUVENATION AND

EXPANSION

5.0 OPERATION AND

MAINTENANCE

6.0 WARRANTY

SEPTEMBER 2020

For more detailed design and installation information on AES, please contact Infiltrator
Water Technologies at (800) 221-4436 or Presby Environmental, Inc. at (800) 473-5298.

www.infiltratorwater.com

•

www.presbyeco.com

Summary of Contents for Presby Advanced Enviro-Septic

Page 1: ... 2 1 System Sizing 6 2 2 Design Procedure 6 2 3 Design Examples 7 2 4 Design Specifications 8 2 5 System Configurations 11 2 6 Pump Systems 13 2 7 Venting 17 2 8 Site Selection 18 3 0 INSTALLATION 19 4 0 REJUVENATION AND EXPANSION 22 5 0 OPERATION AND MAINTENANCE 23 6 0 WARRANTY 24 SEPTEMBER 2020 For more detailed design and installation information on AES please contact Infiltrator Water Technolo...

Page 2: ...Fax 603 837 9864 Website www presbyenvironmental com The products and methods depicted in this Manual are protected by one or more patents Advanced Enviro Septic is a registered trademark of Presby Environmental Inc IMPORTANT NOTICE This Manual is intended ONLY for use in designing and installing Presby Environmental s Advanced Enviro Septic Wastewater Treatment Systems The processes and design cr...

Page 3: ...ally addressed in 19 CSR 20 3 060 the Rules It shall be designed permitted and installed in accordance with the requirements and exceptions listed below If there are questions about design specifications please contact your local health department or Presby Environmental PEI for assistance at 800 473 5298 System Design Design of the AES shall comply with the following the soil type and soil loadin...

Page 4: ...sts longer and has a virtually no negative environmental impact The AES system has been successfully tested and certified to NSF ANSI 40 Class I a certification typically given to mechanical aeration devices and BNQ Class I II III standards Additional system benefits include requires a smaller area installs easily and quickly eliminates the need for environmentally impactful washed stone adapts ea...

Page 5: ...tem sand is placed a minimum of 3 in above and 6 in below between and around the outer perimeter of the AES pipes It shall adhere to all of the following percentage and quality restrictions System Sand Specification Sieve Size Percent Retained on Sieve by weight 3 4 in 19 mm 0 10 2 mm 0 35 35 0 50 mm 40 90 Note not more than 3 allowed to pass the 200 sieve verified by washing sample per requiremen...

Page 6: ... 10 70 SSBA DDF SLR Table 14 2 2 Design Procedure Step 1 Determine System Sand Bed Area SSBA Required Based upon the SLR on the site as established by a soil morphology evaluation use the formulas from Table A above to calculate the minimum SSBA required Step 2 Calculate the Minimum Amount of AES Pipe Needed Residential systems multiply the number of bedrooms in the design by 70 ft Non residential...

Page 7: ...aration greater than 2 feet Step 1 Determine System Sand Bed Area SSBA Required SSBA 480 gpd 1 00 gpd ft 480 ft 480 ft 0 90 432 ft Step 2 Calculate the Minimum Amount of AES Pipe Needed AES pipe required 70 ft br 4 br 280 ft minimum Step 3 Determine Row Length and Quantity Needed Using a row length of 70 ft requires 4 rows 280 ft 70 ft 4 rows Step 4 Determine Pipe Layout Width PLW PLW 4 1 1 5 1 5 ...

Page 8: ... 5 or less not applicable b Beds sloping 5 Minimum SSBW 20 5 ft is greater than the 4 0 3 5 ft use 20 5 as the SSBW Step 7 Calculate System Sand Extension SSE a Beds sloping 5 or less not applicable b Beds sloping 5 SSE placed entirely on the down slope side of the bed SSE 20 5 4 0 1 15 5 which meets the 2 5 ft minimum extension for this slope Illustration of Example 2 2 4 Design Specifications Th...

Page 9: ...shall be maintained on at least an annual basis Follow manufacturer s instructions regarding required inspections cleaning and maintenance of the effluent filter Effluent filters must allow the free passage of air to ensure the proper functioning of the system Charcoal filters in vent stacks for odor control are not recommended by PEI They can block air flow and potentially shorten system life Flo...

Page 10: ...f the SSBA with any system sand extensions placed entirely on the downslope side Systems sloping greater than 5 require a 2 5 ft SSE on the downslope side of the bed 3 ft when measured from the pipe Each row must be laid level to within in total of 1 in of the specified elevation and shall be parallel to the contour of the site It is most convenient if row lengths are designed in exact 10 ft incre...

Page 11: ...ade In systems sloping greater than 5 there must be a minimum of 2 5 ft of system sand extension 3 ft measured from the pipe beyond the last down slope row of pipe There must be a minimum of 12 in of cover material over the ends of all system sand extensions if present Illustration of an elevated level bed Illustration of an elevated sloping bed In Ground Bed Systems Systems are installed at or be...

Page 12: ...shall be laid level end to end A 2 in min drop is required between the D box outlets and the AES pipe inlets Rows shall meet requirements outlined in the design criteria above Illustrations for D box parallel distribution bed design Multiple Bed Distribution Incorporates two or more beds each bed receiving an equal amount of effluent from a D box Multiple beds may be oriented along the contour of ...

Page 13: ...ds 2 6 Pump Systems Pumped systems supply effluent to the system using a pump and D box when site conditions do not allow for a gravity system Dosing siphons are also an acceptable means of delivering effluent to the system Pump volume per dose shall be no greater than 1 gallon times the total linear feet of AES pipe Pump dosing should be designed for a minimum of 6 cycles per day 6 8 cycles per d...

Page 14: ... shall utilize differential venting General Rules Differential venting is the use of high and low vents in a system In a gravity system the roof stack acts as the high vent High and low vent openings shall be separated by a minimum of 10 vertical ft If possible the high and low vents should be of the same capacity Roof vent diameter must be a minimum of 3 in 4 in diameter is recommended If the roo...

Page 15: ... as the high vent as long as there are no restrictions or other vents between the low vent and the house roof vent When the house roof vent functions as the high vent there shall be a minimum of a 10 ft vertical differential between the low and high roof vent openings Illustration of gravity system air flow LOW VENT AIR INLET VENTING IS ESTABLISHED THROUGH SUCTION CHIMNEY EFFECT CREATED BY THE DRA...

Page 16: ... slope toward the system the low point of the vent line must be drilled creating several in holes to allow drainage of condensation This procedure may only be used if the vent pipe connecting to the system has A high point that is above the highest point of all AES pipes or the D box 2 in minimum for each and A low point opened for drainage which is above the SHWT see diagram below By Pass Venting...

Page 17: ...rs are sufficiently altered to redirect flows away from the field Locate systems on convex hill slope or level locations Avoid swales low areas or toe of slope areas that may not provide sufficient drainage away from the system No onsite system may be located on concave slopes that concentrate surface or ground water flows unless up slope terrain is sufficiently altered or interceptor drains are u...

Page 18: ...y to accept water No trees or shrubs should be located within 10 ft of the system to prevent root infiltration AES as a Replacement System If an AES system is being installed in the same location where another onsite system has previously been installed Remove the existing components and contaminated sand and soil If the soils under and around the system have not been compromised it is permissible...

Page 19: ...h and other organic matter or debris from the excavated system site Removal of all tree stumps and the central root system below grade is recommended see note below Use a backhoe or excavator with a mechanical thumb or similar extrication equipment to lift or leverage the stump in a manner that minimizes soil disturbance It is not necessary for the soil of the system site to be smooth when the sit...

Page 20: ...nstall the sand for side slope tapering to allow machinery movement around the perimeter of the system Rake the system sand where the AES pipes will be installed so it is as level as possible before placing pipes on the system sand This will make it easier to level the pipe rows 2 Locate AES rows horizontally 3 Locate AES rows vertically using a laser level or transit Lift or lower the pipes at co...

Page 21: ...rator along the bottom sewn seam up 3 Straddle each row of pipe and walk heel to toe its entire length ensuring that system sand fills all void spaces beneath the AES pipe 4 Finish spreading system sand to the top of the rows and leave them exposed for inspection purposes 5 Confirm that all rows of pipe are level to within 1 in end to end 6 After inspection if required proceed to backfilling and f...

Page 22: ...and septic tank pumped by a registered septage pumper This may require a permit 4 If foreign matter has entered the system flush the pipes 5 Safeguard the open excavation 6 Guarantee a passage of air through the system 7 Allow all rows to dry for 72 hours minimum The system sand should return to its natural color 8 Re assemble the system to its original design configuration As long as there is no ...

Page 23: ...Latex and oil paints System suffocation compacted soils barrier materials etc without proper venting Note PEI does not recommend the use of septic system additives System Maintenance Pumping of the Septic Tank Inspect the septic tank at least once every two years under normal usage Pump the tank when surface scum and bottom sludge occupy one fourth or more of the liquid depth of the tank If a garb...

Page 24: ...dated damages including loss of production and profits labor and materials overhead costs or other losses or expenses incurred by the Holder or any third party Specifically excluded from Limited Warranty coverage are damage to the Units due to ordinary wear and tear alteration accident misuse abuse or neglect of the Units the Units being subjected to vehicle traffic or other conditions which are n...

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