Baffle Wall In Septic Tank Definition

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

Baffle wall in septic tank definition.

The inlet baffle wall is placed at a distance of l 5 from the wall where l is the length of the wall. Wall baffles and sanitary tees. 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. Septic baffles break down into two main categories.

Solids are retained in the first chamber and liquids then pass through the baffle into the second chamber and on to the percolation area. 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. It is optional near the outlet. A septic tank should have baffles at both the inlet and outlet.

The inlet baffle is situated at the junction between the septic tank and the main sewer line leading from the house. 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. Septic tanks are split into two chambers.

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. After having my septic tank pumped out last week i was told that my septic tank output baffle had fallen off. After doing a little research i figured i could. In most cases wall baffles also consist of concrete and are built directly into the side of the tank.

Details of the septic tank baffle repair involving installing a pvc tee in this septic tank are shown. The purpose of the inlet baffle is twofold. The septic tank baffle or tee is a device on the inlet or outlet of a septic tank which prevents sewage back flow into the inlet or outlet pipe. The baffle wall is generally extended 150mm above to scum level and 400 700mm below it.

At septic tank tees. Sewage smells whether in the house or in the drain field sewage smells indicate that unprocessed sewage may be clogging the drain. 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. Baffle walls are provided near the inlet.

Older septic tanks especially those made from concrete tend to contain wall baffles.