How to Size a Septic Tank or Seepage Pit

The size of a residential septic system is determined by the number of bedrooms within the house.  Most people think its the number of bathrooms, but its not. 

Commercial properties arrive at the proper system size by taking a count of fixtures and applying a formula contained within the Uniform Plumbing Code.

The following information is respective of residential properties only in our area.  These sizes will differ in other areas of the country. 

Number Bedrooms

Septic Tank

Seepage Pit

Leach Line

1 or 2 Bedrooms
3 Bedrooms
4 Bedrooms
5 or 6 Bedrooms

750 Gallon
1000 Gallon
1200 Gallon
1500 Gallon


How a Septic Tank Works
The Typical Septic Tank
Leaching Systems
Maintenance Suggestions
Things are backing up.  What next?
How to Locate your Septic Tank
What can go wrong?
Pumping your Septic Tank
Septic Tank and Cesspool Sizes

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