Single compartment septic tank anatomy Wastewater leaving the septic tank is a liquid called effluent.While it has received some treatment in the septic tank it is still unpleasant smelling and contains disease organisms, organic wastes and other pollutants.
This pump tank contains a sewage effluent pump, control floats, and a high water alarm.Also, don't install driveways, patios, carports, decks, storage sheds, sports courts, landscaping plastic, and/or allow animals to graze.These activities pack soil and may lead to pipes breaking.The control floats are set so that a specific volume of effluent is sent to the drainfield. When the effluent in the pump tank rises to the level of the "on" float the pump is activated and pumps the level of the effluent down until it reaches the "off" float setting (See Diagram 3 below.) Pump tank anatomy Should the "on" float fail to activate the pump or should the pump itself fail the level of effluent in the pump tank will continue to rise in the pump chamber.When this level reaches the alarm float an audible and visual signal will be activated.
Single chamber septic tank design
We design and manufacture four different types of Septic Tanks: Download tank Septic Tank 5000L diagram PDF Download tank Septic Tank 7000L diagram PDF These are suitable for light soil types with free drainage. Waste is gravity fed into the tank, the solids then settle out as the waste travels over the length of the tank, a biofilter on the outlet filters out all solids which are larger than 200 microns. Heavy solids settle to the bottom where bacterial action produces digested sludge and gases.Lighter solids that float such as grease, oils and fats, rise to the top and form a scum layer.The first signs may be slow draining fixtures, however the system may fail by discharging sewage effluent to the ground or back-up into the house as well (see below.) Double compartment septic tank anatomy Single compartment septic tanks: Most septic tanks need to be pumped every 3-5 years, depending on the tank size, the amount of solids entering the tank and the habits of the users.
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