Septic Tank With No Bottom

Note that this is 2 inches lower than the bottom of the septic tank inlet opening.

Septic tank with no bottom.

A buried watertight tank designated and constructed to receive and partially treat raw domestic sanitary wastewater. The septic tank outlet should always be a bit lower than the septic tank inlet othewise sewage would run backwards into the septic tank inlet pipe and would clog the system. The inlet pipe collects the water waste in the septic tank long enough that the solid and liquid waste is separated from each other. Compartments and a t shaped outlet prevent the sludge and scum from leaving the.

The tank is connected with two pipes for inlet and outlet. Below are the septic tank design calculations. For clear understanding here we designing a septic tank for 8 people in a house which get filled in 10 days. The bottom of the septic tank outlet pipe is 40 inches above the bottom of the septic tank.

The septic tank is a buried water tight container usually made of concrete fiberglass or polyethylene. How to design septic system. Keep these materials and substances out of your sewer lines toilets other fixture drains in order to avoid costly clogged sewer piping or to avoid damaging the septic tank or absorption fields. Its job is to hold the wastewater long enough to allow solids to settle down to the bottom forming sludge while the oil and grease floats to the top as scum.

Heavy solids settle to the bottom of the tank while greases and lighter solids float to the top.