The recommendation for home use is a 1000 gallon septic tank as a starting point. The 1000 gallon size tank is a minimum and *can be suitable for a 2 bedroom, 3 bedroom house. Some recommendations say to add an extra 250 gallons of septic tank capacity for each bedroom over 3 bedrooms.
What Size Septic Tank?
A septic tank is a key component of a septic system, a small–scale sewage treatment system common in areas with no connection to main sewage pipes provided by local governments or private companies.
Septic systems are used where building sewers are not available or where the soil is too shallow for a conventional leach field.
A septic tank consists of one or more concrete, fiberglass, or plastic tanks of between 4000 and 7500 liters (1,000 and 2,000 gallons); one end is connected to an inlet wastewater pipe and the other to a seepage field.
Wastewater enters the septic tank, where solids settle and scum floats. Anaerobic bacteria decompose the sewage in the tank.
In a typical septic tank, 60 to 70 percent of the wastewater is stored in the main tank, while the remaining 30 to 40 percent flows into the leach field.
The main tank is typically divided into two chambers, each with a manhole cover, to allow periodic cleaning of the settled solids (known as sludge) that accumulate in the bottom of the tank.
The size of septic tank is determined by a number of factors, including the number of bedrooms in the house, the
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