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Presby Environmental, Inc. 

An Infiltrator Water Technologies Company

 

DESIGN AND INSTALLATION MANUAL 

 

 
 

 

 

 

Table of Contents 

1.0 INTRODUCTION

 

3

 

1.1 Background

 

3

 

1.2 System Components

 

4

 

2.0 SYSTEM DESIGN

 

6

 

2.1 Sizing

 

6

 

2.2 Design Layout

 

6

 

2.3 Design Specifications

 

12

 

2.4 System Configurations

 

15

 

2.5 Pump Systems

 

19

 

2.6 Venting

 

19

 

2.7 Aquaworx Remediator

 

22

 

2.8 Site Selection

 

23

 

3.0 INSTALLATION

 

24

 

4.0 REJUVENATION AND 

EXPANSION

 

28

 

5.0 OPERATION AND 

MAINTENANCE

 

29

 

6.0 WARRANTY

 

30

 

 

 

143 Airport Road • Whitefield, NH 03598 

(800) 473-5298

 

www.presbyenvironmental.com 

[email protected]

 

 

WASTEWATER TREATMENT SYSTEMS

 

 

July 2020 

Содержание EnviroFin

Страница 1: ...g 6 2 2 Design Layout 6 2 3 Design Specifications 12 2 4 System Configurations 15 2 5 Pump Systems 19 2 6 Venting 19 2 7 Aquaworx Remediator 22 2 8 Site Selection 23 3 0 INSTALLATION 24 4 0 REJUVENATI...

Страница 2: ...ons Env Wq 1000 rules do not allow for expansion of a system in the same location from which it has been removed System expansions require full removal and replacement of the existing system However i...

Страница 3: ...s essential for consistent long term dispersal and infiltration of the treated wastewater flows The EF system is also completely passive requiring no electricity motors alarms computers etc The system...

Страница 4: ...he cover closer to the final grade for access It has no holes for pipe attachment but is provided with a cutout as an alternate vent location The stackable FDU is mated to the standard FDU with suppli...

Страница 5: ...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...

Страница 6: ...upport for commercial use Minimum SSBA requirements are not impacted by this change in specifications 3 For one bedroom applications area calculations are based on a design flow of 225 gpd per Env Wq...

Страница 7: ...following formula full depth SSBA along the short axis of EF units of EF Units 1 x C L 4 5 ft c Calculate full depth SSBA multiply result from a and b above Example a The field is two EF units long o...

Страница 8: ...he bed from Task 4 then subtract the full depth SSBA width length from the side of the bed perpendicular to the downslope edge of the bed This results in the width of the SSE which is a minimum of 6 i...

Страница 9: ...Required Minimum SSBA required 700 gpd 100 x 89 29 626 ft2 Task 3 Determine Multiple Bed System Layout N A using a single bed Task 4 Calculate the Full Depth System Sand Bed Area a Full depth SSBA alo...

Страница 10: ...bedrooms X 150 gal for residential or gpd for commercial find the minimum number of EF units required from Table B page 6 or calculate the number of units required manually Task 2 Determine Minimum S...

Страница 11: ...imum of 6 in of system sand around the perimeter of the treatment fins and the appropriate minimum SSBA associated with the design flow soils perc rate and the number of EF units within each bed of th...

Страница 12: ...et independent of and without respect to use of the Remediator Water Purification Systems Water purification systems and water softeners should not discharge into any EF system If water purification s...

Страница 13: ...e connecting pipe slope not less than 1 approximately 1 8 in per foot EnviroFin Unit Requirements EF systems use the bed sizing tables and installation requirements noted in this Manual Residential sy...

Страница 14: ...level The system slope and the site slope do not have to be the same Maximum site slope is 33 and maximum system slope is 25 Table D System Slopes Percolation Rate Minutes Per Inch mpi System Slope Ma...

Страница 15: ...placement In ground systems that slope over 5 require a 2 5 ft system sand extension on the downhill side of the field The EF system in an in ground application on a level site Equalized Flow Distribu...

Страница 16: ...to each level using a D box Multi Level EQ distribution systems follow the requirements for EQ distribution systems except Multi Level EQ distribution systems are limited to soils with a perc rate 30...

Страница 17: ...manifolding D box outlets such that each outlet feeds a single EF unit Example Two sections one with 2 EF units and the other with 3 EF units Manifold 2 D box outlets to one section and 3 outlets to t...

Страница 18: ...w EQ combination or individual D box distribution Multiple beds may consist of different size beds as long as the D box outlet ratio matches the ratio of EF units within the beds For instance 3 beds w...

Страница 19: ...a maximum of 15 gpm due to the flow constraints of the equalizers o Example pumping to a combination system with 3 sections using 3 D box outlets The maximum delivery rate is 3 x 15 45 gpm The rate at...

Страница 20: ...system to prevent moisture from collecting in the pipe and blocking the passage of air Remote venting or By Pass venting may be utilized to minimize the visibility of vent stacks o For options to rel...

Страница 21: ...t 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...

Страница 22: ...duce wastewater strength and increase the dissolved oxygen concentration in the effluent The bacteria within the oxygen rich wastewater works to minimize the waste materials suspended in the effluent...

Страница 23: ...face and subsurface If allowed by state and local authorities altering the terrain upslope of a system may alleviate this requirement if the waters are sufficiently altered to redirect flows away from...

Страница 24: ...n Do not excavate the system area immediately after during or before precipitation Tree Stumps Before tilling remove all grass leaves sticks brush and other organic matter or debris including all tops...

Страница 25: ...ired by the approved plan and DDF To install the EF units 1 Place the assembled EF units on the full depth SSBA by centering the FDU in the prepared holes excavated earlier Notice the orientation of t...

Страница 26: ...EF units Manifold 2 D box outlets to one section and 3 outlets to the other section This configuration will divide flows appropriately Flow equalizers are required in all D box outlets which split eff...

Страница 27: ...n be located easily using a metal detector 6 Continue placing system sand to a minimum of 3 in over the treatment fins and a minimum of 6 in beyond the perimeter of the outermost treatment fins 7 Once...

Страница 28: ...all system openings and excavations 6 Guarantee a passage of air through the system 7 Allow all units to dry for 72 hours minimum The system sand should return to its natural color 8 Re assemble the s...

Страница 29: ...roducts in any amount Latex and oil paints System suffocation compacted soils barrier materials etc without proper venting System Maintenance Pumping of the Septic Tank Inspect the septic tank at leas...

Страница 30: ...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 a...

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