Typical residential septic tanks range in size between 750 gallons to 1,250 gallons. For example, a 1,000-gallon septic tank would be needed for a three-bedroom home that is less than 2,500 square ...

Concrete. This is the most common septic tank material and can last decades, ... — 1,250-gallon septic tank for a home between 3,500 and 4,500 square feet, four or five bedrooms.

Some of the new regulations affect the actual septic tank, ... The costs of concrete tanks are anticipated to ... Currently a 1,000-gallon steel tank is about $1,720 and a 1,250-gallon tank about ...