Fact Sheet

Low Pressure Pipe Disposal System

Characteristics

27 - 47 inches to the limiting zone

0 - 120 mpi percolation rate

mpi = minutes per inch

0-10%slopes permitted with a single manifold

> 10% slopes require a split manifold

Installed with trenches 9 to 18 inches deep

System Components

Septic tank

Dosing chamber

Sewage pump and float system

Drainfield

Alarm system

Care and Maintenance

This system is pressurized by a sewage pump. The pump sends effluent to the drainfield two to four times a day with resting periods in between to allow aerobic treatment of the effluent. If the pump or float system should fail, the alarm will turn on signaling the failure. Contact a wastehauler to pump the septic tank and the dosing chamber Then contact your installer to inspect and correct the problem.

Some LPP systems gradually accumulate solids at the ends of the lateral lines. The solids should be removed once a year by unscrewing the caps on each of the turnups and back-flushing the laterals with a garden hose.

The alarm panel should be checked and tested regularly.

Pump maintenance should follow the manufacturer's recommendations

No vehicular traffic should be allowed on the drainfield area because this is a shallow placed system.

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