Baffle Wall In Septic Tank Definition

In most cases wall baffles also consist of concrete and are built directly into the side of the tank.

Baffle wall in septic tank definition.

The tank is fully functional even without one. The inlet baffle gives the debris from the sewer in the house directly into the tank. The purpose of the inlet baffle is twofold. A septic tank should have baffles at both the inlet and outlet.

When checking the septic tank both the inlet and outlet baffles should be evaluated as well as where and how the piping enters and exits the tank. If the septic tank were just a rectangular box with no baffles it would allow liquid to go from the inlet right to the outlet and not have enough time to settle out the solids and allow the lighter things grease etc to float. This is provided that it is properly maintained with regular pumping or that there are no other issues that would cause lots of sludge to build up in your tank. If your septic tank is properly maintained with regular plumping a septic tank baffle is not absolutely necessary.

Inlet baffles need to be in place to direct flow into the tank downward to allow for settling of solids to occur and to prevent the short circuiting of water and solids directly through the tank. For small tanks rcc hanging type scum baffle walls are provided in septic tanks. The inlet baffle is situated at the junction between the septic tank and the main sewer line leading from the house. The baffle wall is generally extended 150mm above to scum level and 400 700mm below it.

Older septic tanks especially those made from concrete tend to contain wall baffles. Our photo compliments of architect jerry waters shows a badly deteriorated concrete septic tank baffle. Septic baffles break down into two main categories. Sewage smells whether in the house or in the drain field sewage smells indicate that unprocessed sewage may be clogging the drain.

The condition of the septic tank baffles tells you what has been happening in the septic system. Wall baffles and sanitary tees. Details of the septic tank baffle repair involving installing a pvc tee in this septic tank are shown. The inlet baffle wall is placed at a distance of l 5 from the wall where l is the length of the wall.

To direct flow from the house sewer downward into the tank to create a longer detention time for the sewage to allow settling of solids and to keep the floating scum layer from plugging the inlet pipe. Baffle walls are provided near the inlet. It is optional near the outlet. Yet still you may need to have an idea of what a baffle is and what it does in the tank.

It s designed to help wastewater flow smoothly into the tank without disturbing the scum layer.