Pressure Distribution System

Pressure distribution systems are usually required when there is less than optimal soil depth available for complete treatment of the effluent by a gravity system. A minimum of two feet of properly drained soil is required under the trenches. The tank and drainfield size are normally the same as a standard gravity system, but the method by which the effluent is distributed to the soil is different.

A pump is used to pressurize the effluent into a small underground chamber which transports it to the drainfield. The drainfield itself consists of pipe and rock, Unlike a standard gravity system, a pressure distribution system wets the entire length of the trench each time the pump turns on. This allows the effluent to be spread over a larger area and receive better treatment from the soil.


Services We Provide

Service Area

  • Battle Ground, WA
  • Brush Prairie, WA
  • Camas, WA
  • Hazel Dell, WA
  • Hockinson, WA
  • La Center, WA
  • Meadow Glade, WA
  • Mill Plain, WA
  • Ridgefield, WA
  • Vancouver, WA
  • Washougal, WA
  • Woodland, WA
  • Yacolt, WA