If you’re looking to install a septic system, the smallest tank size you’re likely to find is 750-gallon, which will accommodate one to two bedrooms. You can also opt for a 1,000-gallon system, which will handle two to four bedrooms.
What Is the Smallest 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 sewers.
Septic tanks can be used in a variety of settings, from rural homes to urban apartments. They are often used in areas where the soil is not suitable for a traditional sewage treatment system.
A septic tank is a watertight chamber made of concrete, fiberglass, or plastic, with an inlet for sewage and an outlet for treated effluent.
The tank is buried in the ground, and the effluent is discharged into a leach field, also known as a drain field, where it percolates into the soil.
The primary purpose of a septic tank is to separate solids and liquids. The solids settle to the bottom of the tank, where they are decomposed by bacteria.
The liquids are discharged into the leach field, where they are further treated by bacteria. The size of a septic tank is determined by the number of bedrooms in the house or apartment.
A typical tank for a three–bedroom home has a capacity of 1,000 gallons (3,785 liters). The smallest septic tank is the MicroLift