Baffle Wall In Septic Tank Definition

At septic tank tees.

Baffle wall in septic tank definition.

Plumbing backups when the inlet baffle wears out sewage might flow backwards from the tank into the house or surface scum might prevent sewage from entering the tank backups can also result from clogs in the drain field caused by failure of the outlet baffle. The inlet baffle is situated at the junction between the septic tank and the main sewer line leading from the house. The purpose of the inlet baffle is twofold. Our photo compliments of architect jerry waters shows a badly deteriorated concrete septic tank baffle.

The baffle wall is generally extended 150mm above to scum level and 400 700mm below it. Sewage smells whether in the house or in the drain field sewage smells indicate that unprocessed sewage may be clogging the drain. A septic tank should have baffles at both the inlet and outlet. In some designs the septic tank inlet baffle or tee also reduces the movement of sewer gases out of the tank and up into the building through an un trapped sewer pipe.

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. After doing a little research i figured i could. It s designed to help wastewater flow smoothly into the tank without disturbing the scum layer. Septic tanks are split into two chambers.

The t pieces shown in the drawing are essential for a properly working tank. The condition of the septic tank baffles tells you what has been happening in the septic system. Baffle walls are provided near the inlet. Older septic tanks especially those made from concrete tend to contain wall baffles.

Details of the septic tank baffle repair involving installing a pvc tee in this septic tank are shown. 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. The inlet baffle wall is placed at a distance of l 5 from the wall where l is the length of the wall. After having my septic tank pumped out last week i was told that my septic tank output baffle had fallen off.

Septic baffles break down into two main categories. For small tanks rcc hanging type scum baffle walls are provided in septic tanks. In most cases wall baffles also consist of concrete and are built directly into the side of the tank. Solids are retained in the first chamber and liquids then pass through the baffle into the second chamber and on to the percolation area.

The chambers are divided by a baffle wall.