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Pretreatment for Biofiltration Systems

  • PRETX pretreatment system installation
  • PRETX stormwater pretreatment system
  • Dual stormwater pretreatment system in parking lot
  • Functioning stormwater preatreatment system
  • Stormwater pretreatment system installation
  • PRETX installation

PRETX is a pretreatment system that is best used in locations with moderate to high trash and debris load such as commercial areas and residential neighborhoods. They are constructed from pre-cast concrete, HDPE, and stainless steel – making them very resistant to winter weather and harsh chemicals. Additional benefits include the reduction of critical maintenance visits for biofiltration systems and the simplification of those visits. No special equipment is required to maintain the unit due to its accessible location.

Three PRETX models are available to ensure an appropriate match for your biofiltration system:

  • PRETX Curb: Captures edge of pavement runoff at a curb cut in lieu of a stone spreader
  • PRETX Drop: For use as a drop inlet configuration along a curb line and installed with a standard drop inlet grate
  • PRETX Inline: Used for subsurface inlet and outlet pipes

Please contact our team if you require assistance determining if PRETX is the appropriate pretreatment system for your design.

Why is Pretreatment Important?

Pretreatment is a critical component to consider when designing biofiltration systems (like FocalPoint). The absence of a pretreatment system can allow large amounts of sediment and trash to clog the media and infiltration bed, thus decreasing the effectiveness and operating life of the system. By adding a pretreatment system, you can reduce the likelihood of expensive repairs or the installation of entirely new systems down the road.

  • Beneficial for biofiltration systems, rain gardens, bioswales & more
  • Multiple models available to fit your project and design needs
  • Maintenance is simple and utilizes standard vactor tracks (no special equipment required)
  • Frequency and complexity of maintenance is reduced, lowering associated costs
  • Resistant to harsh weather and chemicals
  • Protects biofiltration system from clogging and associated expensive repairs
  • Works well in locations with moderate to high levels of trash and debris