Septic System Pressure

A low pressure distribution system overcomes these two drawbacks of the normal gravity fed system. The LPD system differs from conventional systems by using a dosing chamber and a network of distribution pipes that are smaller in diameter than those used in normal gravity systems. The dosing chamber is an additional tank that receives effluent from the septic tank.

The effluent is held in this chamber and then periodically pumped into the drain field. This is known as a pressure dose system. The pressure dose system uniformly delivers the wastewater to the entire drain field, in contrast to the conventional gravity fed system that typically delivers the wastewater to less than 15 percent of the field. Because the soil receives the effluent evenly and over set intervals, it is much less likely to become saturated, and therefore works more effectively and has a longer life span.

An LPD system is equipped with a high-water alarm in the dosing chamber to alert the homeowner of any potential serious or sudden problems with the system. Homeowners should not wait until the alarm signals a problem, instead they should consistently follow recommended maintenance practices to ensure that the system continues to work well for as long as possible.

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