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 it's the number of bathrooms, but it's 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
6'x10'
6'x14'
6'x16'
6'x20'
3'x50'
3'x70'
3'x80'
3'x100'

 

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
INF-10X Waste Disgester

A-1 Cesspool Service Home Page