JET Filter System

Earth Retaining Structures (ERS) are failing daily in all parts of the world due to clogged or insufficient weep holes.


The JET FILTER relieves the hydrostatic pressures created by rain water as well as tidal surges trapped behind erosion control structures such as:

  • Seawalls (Concrete)
  • Bulkheads (Wood)
  • MSE Retaining Walls (Block Systems)
  • Sheet Piling (Steel, Vinyl, Composite, Aluminum)
  • Bridge Abutments (Concrete, Wing Walls, Slope Protection)
  • Flood Control Channels


The media equipped in the JET Filter System is the highly rated Mirafi® Filter-weave FW 300 series. This media maintains long-term flow rates in high gradient and dynamic conditions.



Backed by civil engineers, marine contractors, project managers, government and state officials. A lack of erosion control is a vital issue among a retaining wall design. One common problem is wall movement in addition to tieback/whaler tension, toe failure, horizontal cracking and panel separation.

Weep holes are created to relieve the hydrostatic and hydrodynamic water pressure from behind the wall without causing soil loss and/or sinkholes. It’s very important to have access to the erosion control fabric from behind the wall that inevitably will clog and/or deteriorate over time if not properly maintained.

The key component of the flush-mount dewatering JET Filter System is the ability to remove the inner filter cartridge from the front face of any retaining wall design which can be maintained to get the most life expectancy of any wall installed.

The weep hole systems can be easily installed on any new or existing earth retaining structures.


Featured Projects


Concrete Seawall –

Ft. Lauderdale Marina


Consider This: Concrete Seawall


Maintainable Weep Hole Backflow Prevention

Concrete Seawalls

A lack of erosion control that causes sinkholes is a vital issue with a concrete seawall design.

One common problem is wall movement in addition to tieback/whaler tension, toe failure, horizontal cracking, panel separation and stress.

Other considerations are wave forces, toe scour, wave overtopping and storm surges.


Sheet Piling

Vinyl Sheet Piling, Z Type Steel Sheet Piling, FRP Composite and Aluminum Sheet Piling

Interlocks sheet pile structures will experience the build-up of significant hydrostatic water pressure, a vital issue for a sheet piling design.

JET Filter components are made in the USA and are compliant with the Buy American Clause.


Bridge Abutments

Proper maintenance and inspections can also help avoid major disasters. Water run-off without drainage may weaken bridge abutments and wing walls by eroding the material that supports the structure. Furthermore, poor drainage may cause considerable challenges by settling behind the wall and saturating the soil with incredible pressure.


Flood Control Channels

Trapezoidal concrete lined channel structural problems are indicated by cracking, exposure of reinforcing bars, and large areas of spalled concrete along with soil loss from existing weep holes. Even if the spillway or flood control basin is in good structural condition, seepage under the spillway or erosion at the outlet or along the sides can cause the spillway to fail.

Spillway/basin floor slabs and walls should be checked for erosion of underlying base material known as undermining.


Wooden Bulkheads

Proper venting of the wooden bulkhead is absolute paramount, as water will enter the wall from rain, runoff, irrigation, etc.

Forces of nature and physics all work symbiotically to create a fully functioning wall assembly that vents properly and this action maintains the soil density behind the bulkhead.

The purpose of installing weep holes in a wooden bulkhead will relieve the hydrostatic water pressure that may settle or rest behind the wall.


MSE Retaining Walls

The life expectancy of a retaining wall can be increased simply by adding sufficient drainage.

Dry soil may provide little stress on a retaining wall, however heavy soil without proper retaining wall drainage may cause the wall to buckle or lean.