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2018 Indiana Design and Installation Manual

www.eljen.com

2.0 Subsurface Trench and Single Lateral Bed Design and Installation

2.0.4 VERTICAL SEPARATION TO SEASONAL HIGH-WATER TABLE OR LIMITING LAYER:

Refer to section

Rule 410 IAC 6-8.3 70.b.5 for subsurface absorption systems or ISDH Rule 410 6-10.1 (61).

Vertical Separation Distance (VSD)

System Type

Daily Design Flow

Limiting

Layer

Seasonal High

Water Table

Subsurface Trench and Single Lateral
Bed System

>450

30”

24”

<450

24”

Pressure Distribution

Any

24”

VSD measured from the bottom of the excavated trench or bed for the subsurface system.

2.0.5 DISTRIBUTION BOX:

Parallel distribution is preferred. Sequential distribution may be utilized for sloping

sites and must conform to 1.1.4. Distribution boxes are required to be 5 feet from the proximal end of each soil
absorption field trench.

2.0.6 PARALLEL DISTRIBUTION:

Parallel distribution is the preferred method of application to a gravity or pump

to gravity system. It encourages equal flows to each of the lines in the system. It is recommended for most trench
systems.

2.0.7 TRENCH LENGTH:

Trenches will have a maximum of 100 ft in length unless pressure distribution is used per

410 IAC 6-8.3 (74) (r) or ISDH Rule 410 6-10.1 (82) (r).

2.0.8 EQUAL LENGTH:

Trenches must be of equal length in order to provide equal distribution.

2.0.9 SPACING GUIDANCE BETWEEN TRENCHES AND SINGLE LATERAL BED ROWS:

Ensure trenches are

of equal length throughout the system. If using the B43 in a single lateral bed system, ensure there is center to
center distance of 10 feet and 7.5 feet center to center distance for the A42 in a trench.

2.0.10 DISPERSAL AREA:

Dispersal area requirements are located in

IAC 6-8.3 (58) or ISDH Rule 410 6-10.1

(62).

2.0.11 MINIMUM SLOPE REQUIREMENTS:

Maintain a 3:1 slope or gentler for all slopes off the application area.

2.0.12 SUBSURFACE DRAINS:

If subsurface drains are utilized they must remain 10 feet from the edge of the

system sand perimeter.

Содержание GSF A42

Страница 1: ...Geotextile Sand Filter CORPORATION Innovative Onsite Products Solutions Since 1970 Indiana Design Installation Manual www eljen com June 2018 ...

Страница 2: ...RADE BED DESIGN EXAMPLE 43 7 2 SLOPED ABOVE GRADE DESIGN INSTALLATION STEPS 46 8 0 DOSING DISTRIBUTION REQUIREMENTS 47 9 0 PRESSURE DISTRIBUTION REQUIREMENTS 48 10 0 PUMP CONTROLS 50 11 0 SYSTEM VENTILATION 50 12 0 INSPECTION MONITORING PORT 51 13 0 INDIANA GSF REGISTRATION FORM 52 GSF DRAWINGS AND TABLES DRAWINGS FIGURE 1 GSF SYSTEM OPERATION 5 FIGURE 2 SEQUENTIAL LOADING DIAGRAM 7 FIGURE 3 SUBSU...

Страница 3: ...M 0 5 6 SLOPE 45 FIGURE 26 PRESSURE PIPE PLACEMENT 48 FIGURE 27 PRESSURE CLEAN OUT 49 FIGURE 28 CONTOURED TRENCH INSTALLATION 49 FIGURE 29 GSF WITH 4 VENT EXTENDED TO CONVENIENT LOCATION 50 FIGURE 30 MONITORING WELL FOR SAND SOIL INTERFACE 51 TABLES TABLE 1 SPECIFIED SAND SIEVE REQUIREMENTS 4 TABLE 2 SYSTEM GUIDANCE CHART 7 TABLE 3 GSF TRENCH AND SINGLE LATERAL BED SIZING CHART 10 TABLE 4 GSF SUBS...

Страница 4: ... of a GSF system The module is comprised of a cuspated plastic core and geotextile fabric Specified Sand To ensure proper system operation the system MUST be installed using Indiana Department of Transportation Specification 23 INDOT SPEC 23 sand AND must be used in accordance with ISDH Rule 410 IAC 6 8 3 80 j or ISDH Rule 410 6 10 1 88 j Ask your material supplier for a sieve analysis to verify t...

Страница 5: ...d protects the Specified Sand and soil from clogging while maintaining effluent storage within the module Secondary Treatment Zone Effluent drips into the Specified Sand layer and supports unsaturated flow into the native soil This Specified Sand soil interface maintains soil structure thereby maximizing the available absorption interface in the native soil The Specified Sand supports nitrificatio...

Страница 6: ...NTS GSF systems must meet ISDH Rule 410 IAC 6 8 3 except as outlined in this manual The sizing tables in this manual applies to residential systems of any size and Commercial systems with daily design flows less than or equal to 750 GPD Sizing examples are found in this manual Please contact Eljen s Technical Resource Department at 1 800 444 1359 for design information on commercial systems and ad...

Страница 7: ... DIAL A FLOW B IS SETAT THE 9 00 POSITION DIAL A FLOW FITTINGSARE NOT INSTALLED ON THE OVER FLOW LINE FROM THE SEPTIC TANK OR THE DISTRIBUTION PIPE LEADING TO THE GSF MODULES B A B A 1 1 5 SYSTEM GUIDANCE The chart below directs you to the appropriate section of this manual for the design and installation of the system TABLE 2 SYSTEM GUIDANCE CHART Minimum Depth of Installation from Existing Grade...

Страница 8: ... SAND GEOTEXTILE FABRIC FINAL GRADE 13 36 6 24 6 6 7 MIN 12 OF COVER SOIL MATERIAL MAXIMUM TRENCH DEPTH 36 FIGURE 4 SUBSURFACE B43 SINGLE LATERAL BED CROSS SECTION SPECIFIED SAND GEOTEXTILE FABRIC FINAL GRADE 13 48 6 36 6 6 7 MIN 12 OF COVER SOIL MATERIAL MAXIMUM TRENCH DEPTH 36 All subsurface trenches and single lateral beds are required to have 6 inches of Specified Sand at the edges of the GSF ...

Страница 9: ...lel distribution is the preferred method of application to a gravity or pump to gravity system It encourages equal flows to each of the lines in the system It is recommended for most trench systems 2 0 7 TRENCH LENGTH Trenches will have a maximum of 100 ft in length unless pressure distribution is used per 410 IAC 6 8 3 74 r or ISDH Rule 410 6 10 1 82 r 2 0 8 EQUAL LENGTH Trenches must be of equal...

Страница 10: ... 3 4 5 3 4 5 1 2 252 335 419 21 28 35 18 24 30 0 75 402 536 670 34 45 56 26 34 42 0 6 503 670 838 42 56 70 32 42 53 0 5 603 804 1005 51 67 84 38 51 63 0 3 1005 1340 1675 84 112 140 63 84 105 0 25 1206 1608 2010 101 134 168 76 101 126 Notes The Minimum Absorption Area has been adjusted to reflect a 33 reduction in absorption field area Any jetted bath tub with a capacity greater than 125 gallons wi...

Страница 11: ... 4 ft Final Dimension Layout Note System layout and number of rows will vary based on site constraints A42 Trench Min Product Length 336 ft note 6 inches sand required at each end of trench which makes the minimum trench length 337 ft Trench Width 3 ft Minimum Number of Units 84 A42 Modules Designed Absorption Area 1 011 ft2 B43 Single Lateral Bed Min Product Length 252 ft note 6 inches sand requi...

Страница 12: ...INAL GRADE SPECIFIED SAND 7 6 MIN 12 OF COVER SOIL MATERIAL 48 NATIVE SOIL 6 MIN SPECIFIED SAND 48 NATIVE SOIL 6 MIN SPECIFIED SAND Loading Rate 0 3 gpd ft2 Design Flow 150 gpd x 3 Bedrooms 450 gallons per day 21 Modules per Row FIGURE 7 SECTION VIEW B43 SINGLE LATERAL BED SYSTEM 0 5 15 SLOPE FINAL GRADE 7 6 MIN 12 OF SOIL COVER MATERIAL NATIVE SOIL 6 MIN GEOTEXTILE FABRIC SPECIFIED SAND SPECIFIED...

Страница 13: ...level in its length and width end to end along their four foot length on the Specified Sand layer No mechanical connection is required between modules 9 A standard 4 inch perforated pipe SDR 35 or equivalent is centered along the modules 4 foot length Orifices are set at the 4 8 o clock position All distribution piping must meet the requirements of ISDH Rule 410 6 8 3 Section 67 or ISDH Rule 410 6...

Страница 14: ...ured from the top of the 4 inch distribution pipe Fill must be clean porous and able to sustain vegetation Do not use wheeled equipment over the system during backfill operation A light track machine may be used with extreme caution avoiding crushing or shifting of pipe assembly 16 Divert surface runoff from the system Finish grade to prevent surface ponding Topsoil and seed system area to protect...

Страница 15: ...6 8 3 70 b 5 for subsurface absorption systems or ISDH Rule 410 6 10 1 61 Vertical Separation Distance VSD System Type Daily Design Flow Limiting Layer Seasonal High Water Table Subsurface Bed 450 30 24 450 24 Pressure Distribution Any 24 24 VSD measured from the bottom of the excavated bed for the subsurface system 3 0 5 DISTRIBUTION BOX Parallel distribution is preferred Sequential distribution ...

Страница 16: ...35 419 6 6 0 75 402 536 670 8 7 0 6 503 670 838 9 8 0 5 603 804 1005 11 9 0 3 1005 1340 1675 12 10 0 25 1206 1608 2010 13 11 Notes The Minimum Basal Areas have been adjusted to reflect a 33 reduction in absorption field area Any jetted bath tub with a capacity greater than 125 gallons will be treated as an extra bedroom for the system sizing requirements per Rule 410 IAC 6 8 3 3 0 14 SYSTEM LENGTH...

Страница 17: ...20 modules per row B43 20 units x 4 ft unit 1 81 linear ft Calculate Bed Basal Area Width a Minimum A42 Basal Area Width a A42 Rows x 3 ft 2 x 3 ft 6 ft or b Proposed Basal Area Width b Minimum Basal Area Length of System b A42 1340 ft2 97 ft 13 8 ft b round to 14 ft A42 Use greater width of a or b 14 ft a Minimum B43 Basal Area Width a B43 Rows x 4 ft 2 x 4 ft 8 ft or b Proposed Basal Area Width ...

Страница 18: ...Spacing 3 5 ft Designed Basal Area 1 358 ft2 B43 Bed Length 81 ft Bed Width 17 ft Minimum Number of Units 40 B43 Modules Center to Center Spacing 8 5 ft Edge to Center Spacing 4 25 ft Designed Basal Area 1 377 ft2 FIGURE 9 PLAN VIEW 600GPD A42 BED SYSTEM 0 5 SLOPE SPECIFIED SAND 97 96 14 3 6 7 DISTRIBUTION BOX FIGURE 10 CROSS SECTION VIEW 600 GPD A42 BED SYSTEM 0 5 SLOPE SPECIFIED SAND 3 5 7 3 5 1...

Страница 19: ...ngth on the Specified Sand layer No mechanical connection is required between modules 9 A standard 4 inch perforated pipe SDR 35 or equivalent is centered along the modules 4 foot length Orifices are set at the 4 8 o clock position All distribution piping must meet the requirements of ISDH Rule 410 6 8 3 Section 67 or ISDH Rule 410 6 10 1 Section 75 10 All 4 inch pipes are secured with manufacture...

Страница 20: ... top of the 4 inch distribution pipe Fill must be clean porous and able to sustain vegetation Do not use wheeled equipment over the system during backfill operation A light track machine may be used with extreme caution avoiding crushing or shifting of pipe assembly 16 Divert surface runoff from the system Finish grade to prevent surface ponding Topsoil and seed system area to protect from erosion...

Страница 21: ...e Maximum excavation depth from final grade is 36 inches 4 0 4 VERTICAL SEPARATION TO SEASONAL HIGH WATER TABLE OR LIMITING LAYER Refer to section Rule 410 IAC 6 8 3 70 b 5 for subsurface absorption systems or ISDH Rule 410 6 10 1 61 Vertical Separation Distance VSD System Type Daily Design Flow Limiting Layer Seasonal High Water Table Subsurface Bed 450 30 24 450 24 Pressure Distribution Any 24 2...

Страница 22: ...ect a 33 reduction in absorption field area Any jetted bath tub with a capacity greater than 125 gallons will be treated as an extra bedroom for the system sizing requirements per Rule 410 IAC 6 8 3 4 0 14 SYSTEM LENGTH AND WIDTH Best engineering practices should be used when construction the bed systems Rule IAC 6 8 3 79 2 and ISDH Rule 410 6 10 1 87 2 states the dimensions of the bed shall be as...

Страница 23: ... row A42 12 units x 4 ft unit 1 ft 49 linear ft B43 21 units 2 rows 10 5 round 11 modules per row B43 11 units x 4 ft unit 1 45 linear ft Determine Lateral Spacing Lateral to Lateral Spacing from Table above A42 3 ft B43 4 ft Upper Edge to Lateral Spacing from Table above A42 1 5 ft B43 2 ft Calculate Bed Basal Area Width a Minimum A42 Basal Area Width a A42 Rows x 3 ft 2 x 3 ft 6 ft or b Proposed...

Страница 24: ...ge 1 5 ft B43 3 ft 1 5 ft 1 5 ft Since the slope is 11 which requires a 6 ft sand extension from the edge of the last module A42 3 ft is less than 6 ft A42 Sand extension 6 ft B43 1 5 ft is less than 6 ft B43 Sand extension 6 ft Adjusted Lateral to Lower Edge A42 Sand Extension 1 ft A42 6 ft 1 ft 7 ft B43 Sand Extension 1 5 ft B43 6 ft 1 5 ft 7 5 ft Adjusted Cell Width Adjusted Lateral to Lower Ed...

Страница 25: ...ample FIGURE 12 PLAN VIEW 450 GPD A42 BED SYSTEM 0 5 15 SLOPE SAND EXTENSION REQUIREMENT SPECIFIED SAND 6 0 11 6 48 49 1 6 3 7 0 FIGURE 13 CROSS SECTION VIEW 450 GPD A42 BED SYSTEM 0 5 15 SLOPE SPECIFIED SAND 12 MIN 19 MAX OF COVER SOIL MATERIAL 7 0 1 6 3 6 SAND EXTENSION 11 6 MIN 12 OF COVER 6 0 ...

Страница 26: ...ength on the Specified Sand layer No mechanical connection is required between modules 9 A standard 4 inch perforated pipe SDR 35 or equivalent is centered along the modules 4 foot length Orifices are set at the 4 8 o clock position All distribution piping must meet the requirements of ISDH Rule 410 6 8 3 Section 67 or ISDH Rule 410 6 10 1 Section 75 10 All 4 inch pipes are secured with manufactur...

Страница 27: ...the top of the 4 inch distribution pipe Fill must be clean porous and able to sustain vegetation Do not use wheeled equipment over the system during backfill operation A light track machine may be used with extreme caution avoiding crushing or shifting of pipe assembly 16 Divert surface runoff from the system Finish grade to prevent surface ponding Topsoil and seed system area to protect from eros...

Страница 28: ...nal High Water Table Elevated Sand Mound 12 of sand under GSF modules and a pressure distribution network Any 20 20 VSD measured from the existing grade for the elevated sand mound system 5 0 4 ELEVATED SAND MOUND SYSTEM Follow the requirements in 410 IAC 6 8 3 79 to complete the mound When placing the Eljen application area on the basal area there must be 12 inches of INDOT SPEC 23 Sand under the...

Страница 29: ...requirements from the edge of the furthest downslope GSF module 5 0 9 MINIMUM SLOPE REQUIREMENTS Maintain a 3 1 slope or gentler for all slopes off the application area Elevated systems using GSF modules will not be permitted on slopes greater than 6 5 0 10 SUBSURFACE DRAINS If subsurface drains are utilized they must remain 10 feet from the edge of the system sand perimeter FIGURE 15 CROSS SECTIO...

Страница 30: ...e maximum distribution cell width is Maximum Distribution Cell Width ft TABLE 6 N VALUE FOR MOUNDS For this example the maximum distribution cell width is 5 8 ft B Distribution cell length Daily Design Flow 1 2 gpd ft2 constant Distribution Cell Width 600 gpd 1 2 gpd ft2 4 ft 125 ft Modules required Modules required are determined by Distributions Cell Length 1 4 Modules required 125 1 4 31 module...

Страница 31: ...pe x ground slope 100 100 3 x 6 1 2 3 x D E F x Down slope correction factor 1 ft for Berm 3 x 1 2 0 6 1 3 x 1 2 1 12 2 ft H Distance from edge of distribution cell to up slope edge of system Up slope correction factor 100 100 side slope x ground slope 100 100 3 x 6 0 9 3 x C E F x Up slope correction factor 1 ft for Berm 3 x 1 0 6 1 3 x 0 9 1 8 8 ft I Distance from end of distribution cell to edg...

Страница 32: ...on 87 Design of Basal Area In this example the sand extension from the distribution cell meets the minimum requirements Final Dimensions of the system are on the following page DESIGN REQUIREMENT 410 IAC 6 8 3 80 and ISDH Rule 410 6 10 1 Section 87 state use the greater result for this section the Distribution Cell Width is equivalent to the Aggregate Bed Width referred to in section 80 a Minimum ...

Страница 33: ...AN 0 5 1 3 4 1 1 2 APPLICATION AREA 0 6 1 3 11 2 7 8 23 NATIVE SOIL ORIGINAL GRADE TILLED 1 BERM FIGURE 18 PLAN VIEW MOUND SYSTEM ELJEN DISTRIBUTION CELL 1 FOOT BERM SOIL COVER BERM 125 9 143 11 2 4 7 8 23 FIGURE 19 PLAN VIEW 600 GPD APPLICATION AREA MOUND SYSTEM 124 125 1 4 HOLE AT 12 O CLOCK LPP 4 DISTRIBUTION PIPE HOLES AT 4 8 SPECIFIED SAND VENT PORT 6 3 6 4 ...

Страница 34: ...4 8 o clock position 9 All 4 inch pipes are secured with manufacturers supplied wire clamps one per module 10 Insert a Sch 40 pressure pipe which meets 410 IAC 6 8 3 67 or ISDH Rule 410 6 10 1 75 into the standard 4 inch perforated pipe The pressure pipe orifices are set at the 12 o clock position as shown in Figure 26 Each pressure lateral will have a drain hole at the distal end of the lateral a...

Страница 35: ...Above Grade Bed 12 of sand under GSF module Any 20 20 VSD measured from the existing grade for the above grade bed system 6 0 5 DISTRIBUTION BOX Parallel distribution is preferred Sequential distribution may be utilized for sloping sites and must conform to 1 1 4 Distribution boxes are recommended to be 5 feet from the proximal end of each soil absorption field row as per Rule 410 IAC 6 8 3 Sectio...

Страница 36: ... 335 419 6 6 0 75 402 536 670 8 7 0 6 503 670 838 9 8 0 5 603 804 1005 11 9 0 25 1206 1608 2010 13 11 Notes The Minimum Basal Areas have been adjusted to reflect a 33 reduction in absorption field area Any jetted bath tub with a capacity greater than 125 gallons will be treated as an extra bedroom for the system sizing requirements per Rule 410 IAC 6 8 3 6 0 14 SYSTEM LENGTH AND WIDTH Best enginee...

Страница 37: ...les per row B43 22 units x 4 ft unit 1 89 linear ft Calculate Bed Basal Area Width a Minimum A42 Basal Area Width a A42 Rows x 3 ft 2 x 3 ft 6 ft or b Proposed Basal Area Width b Minimum Basal Area Length of System b A42 1608 ft2 105 ft 15 3 ft b round to 16 ft A42 Use greater width of a or b 16 ft a Minimum B43 Basal Area Width a B43 Rows x 4 ft 2 x 4 ft 8 ft or b Proposed Basal Area Width b Mini...

Страница 38: ...r to Center Spacing 8 ft Edge to Center Spacing 4 ft Designed Basal Area 1 680 ft2 B43 Basal Area Length 81 ft Basal Area Width 20 ft Minimum Number of Units 44 B43 Modules Center to Center Spacing 10 ft Edge to Center Spacing 5 ft Designed Basal Area 1 620 ft2 FIGURE 21 PLAN VIEW 600GPD A42 BED SYSTEM 0 5 SLOPE 16 4 8 105 6 104 FIGURE 22 CROSS SECTION VIEW 600 GPD A42 BED SYSTEM 0 5 SLOPE 16 SPEC...

Страница 39: ...four foot length on the Specified Sand layer No mechanical connection is required between modules 9 A standard 4 inch perforated pipe SDR 35 or equivalent is centered along the modules 4 foot length Orifices are set at the 4 8 o clock position All distribution piping must meet the requirements of ISDH Rule 410 6 8 3 Section 67 or ISDH Rule 410 6 10 1 Section 75 10 All 4 inch pipes are secured with...

Страница 40: ... top of the 4 inch distribution pipe Fill must be clean porous and able to sustain vegetation Do not use wheeled equipment over the system during backfill operation A light track machine may be used with extreme caution avoiding crushing or shifting of pipe assembly 16 Divert surface runoff from the system Finish grade to prevent surface ponding Topsoil and seed system area to protect from erosion...

Страница 41: ...able Above Grade Bed 12 of sand under GSF module Any 20 20 VSD measured from the original grade for the sloped above grade bed system 7 0 4 DISTRIBUTION BOX Parallel distribution is preferred Sequential distribution may be utilized for sloping sites and must conform to 1 1 4 Distribution boxes are recommended to be 5 feet from the proximal end of each soil absorption field row as per Rule 410 IAC ...

Страница 42: ...F SYSTEMS TABLE 9 GSF SLOPED ABOVE GRADE BED SIZING CHART Soil Loading Rate gpd sf Minimum Basal Area Required Square Feet A42 Modules per Room B43 Modules per Room Bedrooms per House 3 4 5 1 2 252 335 419 6 6 0 75 402 536 670 8 7 0 6 503 670 838 9 8 0 5 603 804 1005 11 9 0 25 1206 1608 2010 13 11 Notes The Minimum Basal Areas have been adjusted to reflect a 33 reduction in absorption field area A...

Страница 43: ...ts x 4 ft unit 1 ft 81 linear ft B43 33 units 2 rows 16 5 modules per row B43 17 units x 4 ft unit 1 69 linear ft Determine Lateral Spacing Lateral to Lateral Spacing from above table A42 3 ft B43 4 ft Upper Edge to Lateral Spacing from above table A42 1 5 ft B43 2 ft Calculate Bed Basal Area Width a Minimum A42 Basal Area Width a A42 Rows x 3 ft 2 x 3 ft 6 ft or b Proposed Basal Area Width b Mini...

Страница 44: ... ft A42 6 ft 9 ft 15 ft B43 8 ft 9 ft 17 ft Minimum basal area width is the greater of a or b A42 a 14 9 ft A42 b 15 ft Use 15 ft for Basal Area Width B43 a 17 5 ft B43 b 17 ft Use 17 5 ft for Basal Area Width Final Dimension Layout Note System layout and number of rows will vary based on site constraints A42 Basal Area Length 81 ft Basal Area Width 15 ft Minimum Number of Units 40 A42 Modules Cen...

Страница 45: ...ed Above Grade Bed Design Example FIGURE 24 PLAN VIEW 450 GPD A42 BED SYSTEM 0 5 6 SLOPE 15 3 1 5 81 6 80 10 5 FIGURE 25 CROSS SECTION VIEW 450 GPD A42 BED SYSTEM 0 5 6 SLOPE SPECIFIED SAND 12 MIN 19 MAX OF COVER SOIL MATERIAL 10 5 1 6 3 MIN 12 OF COVER FINAL COVER 12 15 ...

Страница 46: ...width end to end along their four foot length on the Specified Sand layer No mechanical connection is required between modules 9 A standard 4 inch perforated pipe SDR 35 or equivalent is centered along the modules 4 foot length Orifices are set at the 4 8 o clock position All distribution piping must meet the requirements of ISDH Rule 410 6 8 3 Section 67 or ISDH Rule 410 6 10 1 Section 75 10 All ...

Страница 47: ...prevent surface ponding Topsoil and seed system area to protect from erosion 8 0 Dosing Distribution Requirements 8 0 1 ADDITIONAL REQUIREMENTS Dosing tanks and effluent pumps must comply with ISDH Rule 410 6 8 3 Section 62 and 65 or 410 6 10 1 Section 70 and 73 for dosing tanks and effluent pumps Section 410 IAC 6 8 3 78 or 410 6 10 1 86 Subsurface Pressure Distribution is enforced except when no...

Страница 48: ...nes All pressure distribution systems must be made of Sch 40 pipe from 1 to 1 5 inch have equivalent and equally spaced orifices a drain hole and a pressure clean out or other means of flushing the pressure lateral The Sch 40 pressure line is placed within a standard 4 inch perforated pipe The perforation in the 4 inch outer pipe are set at the 4 and 8 o clock position the drilled orifices on the ...

Страница 49: ...ON LATERAL FIGURE 28 CONTOURED TRENCH INSTALLATION PRIOR TO PLACING FABRIC COVER HAND SHOVEL SPECIFIED SAND IN THESE AREAS STANDARD FITTING S 4 PERFORATED PIPE 1 5 PRESSURE PIPE PRESSURE PIPE EXTENDS THRU END CAP AND IS EXTENDED FOR CLEAN OUT DRAIN OPENING AT 6 O CLOCK CAP END OF 4 PIPE Figure 28 depicts a GSF Pressure Distribution trench placed on a contour or winding trenches to maintain horizon...

Страница 50: ...e the physical unit and in between the rows of GSF modules Under normal operating conditions only a fraction of the filter is in use The unused channels remain open for intermittent peak flows and the transfer of air The extension of the distribution pipe to the vent provides adequate delivery of air into the GSF system Typically home plumbing operates under negative pressure due to hot water heat...

Страница 51: ...he Inspection Monitoring Port For beds and elevated systems place one port per lateral At least one inspection port should be placed at the midpoint of a row At the distal ends use 90 degree elbows and extend to the surface as an additional inspection port capped and sealed to be watertight One inspection port should be located downslope in the toe as well FIGURE 30 MONITORING WELL FOR SAND SOIL I...

Страница 52: ...llers of Eljen systems must complete and fax email or mail a copy of this form to one of the following addresses US Mail Eljen Corporation 125 McKee Street East Hartford CT 06108 Website Online Submission http eljen com indiana gsf system registration form Email info eljen com Subject IN GSF System Installation Form Fax 860 610 0427 Subject Indiana GSF System Installation Form ...

Страница 53: ...n x 7 in A42 48in x 24in x 7 in Circle One NUMBER OF BEDROOMS 1 2 3 4 5 Number Greater than 5 ____ Circle One DAILY DESIGN FLOW Number of Bedrooms x 150 gpd ____________ SYSTEM CONFIGURATION Subsurface Bed Above Grade Bed Trench Elevated sand mound Circle One Subsurface requires 6 inches of sand beneath module Elevated sand mounds and above grade beds requires 12 in of sand beneath module TYPE OF ...

Страница 54: ...6 max slope Subsurface System 15 max slope Circle One TRENCH LATERAL LENGTH Gravity and Dosed systems have a maximum length of 100 feet SUBSURFACE DRAINAGE Yes No Circle One Reference 410 IAC 6 8 3 59 or 410 6 10 1 63 for depth requirements of subsurface drainage VENTING Circle One Yes No Venting is required if system cover exceeds 18 inches ...

Страница 55: ...THIS PAGE IS INTENTIONALLY LEFT BLANK ...

Страница 56: ...site wastewater in both residential and commercial applications Today Eljen is a global leader in providing innovative products and solutions for protecting our environment and public health COMPANY PHILOSOPHY Eljen Corporation is committed to advancing the onsite industry through continuous development of innovative new products delivering high quality products and services to our customers at th...

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