Drainage Solution Comparison

Engineering-grade comparison of drainage system performance, maintenance, and total lifecycle cost

Complete Flow Rate Comparison by Product Size & Soil Condition

All flow rates from TRI Environmental Report MAPP-LSH 2020-003. Flow rates calculated at 1 PSI. 

ProductDiameterSurface AreaSilty Sand
(~0 PSI)
Fine Sand
(~0 PSI)
No Soil
(1 PSI)
No Soil
(2.5 PSI)
Cartridge
Interval
3-Inch Products
JF3SS3″17.44 in²0.026 GPM0.75 GPM33 GPM52.2 GPM3-5 Years
JF3SSCVLV3″17.44 in²Not testedNot tested26.6 GPM42.1 GPM3-5 Years
GEO3SS3″17.44 in²0.017 GPM†0.46 GPM†34.7 GPM†54.85 GPM†1-3 Years‡
GEO3SSCVLV3″17.44 in²0.015 GPM†0.43 GPM†30.5 GPM†48.28 GPM†1-3 Years‡
Traditional 3″3″7.07 in²0.012 GPM0.355 GPM24.4 GPM38.6 GPMN/A
4-Inch Products
JF4SS4″26.03 in²0.035 GPM1.0 GPM77.1 GPM121.9 GPM4-7 Years
JF4SSCVLV4″26.03 in²Not testedNot tested66.5 GPM105.1 GPM4-7 Years
GEO4SS4″26.03 in²0.032 GPM†0.93 GPM†71.3 GPM†112.76 GPM†1-3 Years‡
GEO4SSCVLV4″26.03 in²0.030 GPM†0.85 GPM†65.6 GPM†103.74 GPM†1-3 Years‡
Traditional 4″4″12.57 in²0.016 GPM0.462 GPM40.2 GPM63.5 GPMN/A
6-Inch Products
JF6SS6″76.95 in²0.053 GPM1.47 GPM166.6 GPM263.4 GPM6-10 Years
JF6SSCVLV6″76.95 in²Not testedNot tested162.3 GPM256.5 GPM6-10 Years
GEO6SS6″76.95 in²0.047 GPM†1.36 GPM†154.1 GPM†243.64 GPM†1-3 Years‡
GEO6SSCVLV6″76.95 in²0.043 GPM†1.25 GPM†150.1 GPM†237.26 GPM†1-3 Years‡
Traditional 6″6″28.27 in²0.024 GPM0.67 GPM88.9 GPM140.5 GPMN/A
2.5-Inch Products
JF2.5ABS2.5″2.9 in²0.01 GPM0.32 GPMNot testedNot testedAnnually
Traditional 2.5″2.5″4.91 in²0.011 GPM0.3 GPMN/AN/AN/A

Performance Improvement vs. Traditional 2D Weep Holes (@ 1 PSI)

+87%
JF6SS vs Trad 6″
(166.6 vs 88.9 GPM)
+92%
JF4SS vs Trad 4″
(77.1 vs 40.2 GPM)
+35%
JF3SS vs Trad 3″
(33 vs 24.4 GPM)
+73%
GEO6SS vs Trad 6″
(154.1 vs 88.9 GPM)†
Data Sources & Notes:
Green cells = JET Filter values calculated at 1 PSI baseline from TRI Environmental Report MAPP-LSH 2020-003 (tested at 2.5 PSI)
Yellow cells = GEOJET estimated values extrapolated from JET Filter test data (not directly tested)
Red rows = Traditional 2D weep hole baseline values
GEOJET values are estimates based on similar construction to JET Filter (90-95% performance factor applied)
GEOJET media replacement interval varies based on hydrocarbon loading conditions
Silty Sand / Fine Sand: Flow rates measured at near 0 PSI pressure differential
No Soil Resistance: Laboratory conditions with clean water, no soil backfill resistance
Housing Service Life: 100 years for all 316L stainless steel housings
• Testing Standards: ASTM A240/A666, ASTM D4491, ASTM D4751, GRI-GS36, GRI-GC18

How JET Filter™ Works

Reinforced Retaining Wall Backfill / Hydrostatic Pressure Weep Hole Path JET Filter™ (Cone Into Wall) Front Side Drainage Hydrostatic Pressure (Behind Wall)

Quick Selection Guide

Choose the right drainage solution for your application

JET Filter Product

JET Filter™ System

For Standard Drainage Applications

  • Bridge abutments & wing walls
  • Retaining walls & seawalls
  • Parking structures
  • Tunnels & underpasses
  • Foundation drainage

Geotextile Filtration Detail:

JET Filter Geotextile Detail
GEOJET Product

GEOJET® System

For Environmental Protection

  • Parking garages & decks
  • Industrial facilities
  • Fuel stations & airports
  • Equipment washing areas
  • EPA/NPDES compliance sites

Aquatextile Technology Detail:

GEOJET Aquatextile Detail

Superior Filtration Through Increased Surface Area

Each size upgrade provides exponentially more filtration capacity

JF2.5 vs JF3SS Surface Area Comparison
2.5″ to 3″ Upgrade: 44% More Surface Area
JF3SS vs JF4SS Surface Area Comparison
3″ to 4″ Upgrade: 78% More Surface Area
JF4SS vs JF6SS Surface Area Comparison
4″ to 6″ Upgrade: 125% More Surface Area

Engineering Note: Increased surface area directly correlates to longer maintenance intervals and higher flow capacity throughout the service life. Choose the largest size that fits your application for optimal performance.

The Clear Choice for Modern Infrastructure

Traditional 2D Weep Holes

Best for: Temporary solutions or when regulations require traditional methods

  • Lowest initial cost
  • Standard practice
  • No filtration capability
  • Highest maintenance burden
  • Frequent failures

Verdict: Outdated technology with high lifecycle costs

GEOJET® System

Best for: Applications requiring hydrocarbon filtration and environmental compliance

  • 99.9% hydrocarbon removal
  • EPA compliance
  • Aquatextile technology
  • Replaceable filter inserts
  • Environmental protection

Verdict: Essential for petroleum-sensitive areas

Calculate Your Savings

See how much you can save by switching to JET Filter drainage systems

10-Year Total Cost of Ownership Comparison

4″ JET Filter in Fine Sand conditions JET Filter maintenance interval: 5-6 years

Traditional 2D Weep Holes

Materials: $1,000

Installation Labor: $30,000

10-Year Maintenance: $90,000

10-Year TCO: $121,000

JET Filter™ System

Product Cost: $4,000-$6,000

Installation Labor: $250

10-Year Maintenance: $500

Cartridge Replacement: $1,000

10-Year TCO: $5,750-$7,750

Your Estimated Savings

$113,250 – $115,250

~94% Cost Reduction

Calculation Methodology & Assumptions

This calculator provides estimates for planning purposes only. Actual costs vary based on project-specific factors including site access, local labor rates, equipment requirements, and regional pricing.

Traditional 2D Weep Hole Assumptions
  • Installation time: 4-6 hours per opening (includes forming, pipe placement, aggregate, and finishing)
  • Maintenance time: 2-4 hours per opening per visit (clearing, flushing, inspection)
  • Material cost: ~$50 per opening (pipe, aggregate, geotextile)
  • No filtration: Subject to frequent clogging from sediment and debris
JET Filter™ Assumptions
  • Installation time: 30 seconds per unit (press-fit into existing opening)
  • Maintenance time: 5 minutes per unit (visual inspection, cartridge check)
  • Maintenance interval: 3-5 years (3″), 4-7 years (4″), 6-10 years (6″) based on soil conditions
  • Cartridge replacement: Estimated 1 replacement per unit over 10-year period
  • Product pricing: Ranges shown reflect typical market pricing; contact us for project-specific quotes
Data Sources

Flow rates and performance data from TRI Environmental Report MAPP-LSH 2020-003. Maintenance intervals based on field performance across 15+ state DOT installations. Installation times based on contractor feedback and case study documentation.

*Soil condition affects maintenance frequency. Silty sand environments require more frequent inspection due to higher sediment loading. Clean water applications may exceed stated maintenance intervals. Results do not include traffic control, lane closure costs, or emergency repair scenarios which may significantly increase traditional 2D weep hole lifecycle costs.

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