Septic Tank Depth Gauge
If the tank is round then 3 14 x radius squared x depth all in feet cubic capacity.
Septic tank depth gauge. With an average depth of 1600 mm the solids content is about 600 mm thereby reducing the settling time by nearly 40. People in the septic system industry measure scum and sludge layer thicknesses with a product called a sludge judge which cost about 75. A sludge gauge for measuring the depth of a sludge layer covering a bottom of a septic tank. There are several factors that affect how big the septic tank should be.
If the tank is rectangular then length x width x depth in feet x 7 5 gallons. The sludge gauge has a guide sleeve mountable through a septic tank cover and a probe at least an upper end of which is slidably received in the guide sleeve. By performing a quick checkup you ll know when it s time to bring in an expert for routine septic tank pumping and cleaning. Generally at a two year interval for septic tank pumping service the average septic tank in these size ranges will have a 400 mm scum layer with about a 200 mm sludge layer.
The density and base end configuration of the probe are selected to cause the probe to sink. Sludge accumulation is often the main culprit behind a clog or tank failure. The probe has a base end distal an upper end. Septic tank design depth septic tank freeze protection.
There s a simple diy method for obtaining an accurate gauge of a tank or grease trap s sludge buildup. To what depths are septic tanks or cesspools or seepage pits or drywells commonly buried.