Tank and Field
Standard soil-based treatment systems use a septic tank for initial treatment. The household plumbing collects wastewater and sends it to the septic tank which acts as a separation chamber. Heavy particles separate from the wastewater and settle to the bottom to form a sludge layer. Lighter particles, mainly soap, grease and toilet tissue separate and float to the top to form a scum layer. Using a baffle device the clearest liquid from the center of the tank flows by gravity to the effluent dosing chamber. A pump or siphon in the effluent dosing chamber will deliver the effluent to the final soil treatment component, in this case the septic field.
