The septic tank size needed is dependent on the volume of water it can hold which will be drained into the soil absorption field. There are plenty of factors that go into determining your water usage and needed septic tank size.
The most reliable and effective way of determining the septic tank size suitable for your property is by calculating the amount of water you use.
What determines septic tank size. The company that provided the most recent maintenance service on the tank may also have information about the size of your septic tank. Home size and occupants. Septic tank size calculation based per user consumption as above said the capacity of septic tank should be designed correctly because insufficient tank size may result in wastewater backup to the house or it coerces us to clean the water often and also it will increase the maintenance cost.
The homes square footage the number of bedrooms and the number of people who will live there. Minimum depth of septic tank should not be less than 1 8m. Measurements are in feet taken of inside dimensions of the septic tank.
Keep in mind that each state and county has their own minimum requirements but a rule of thumb is your daily sewage flow should not be more than 60 of your tanks capacity. If you know the name of the company that installed your septic system contact them to see if they have this information on file. Sizing your septic tank several variables determine the size of septic system you will need to install.
Total wastewater in 3 days 475 3 1425 liters let us take 2000 liters capacity minimum for a home. Here is the basic math for computing septic tank capacity volume in gallons. First look for documents you may have that indicate the size of your septic tank.
So the septic tank should have the capacity to retain the household wastewater at least 3 days. Keeping this in mind other factors include. Let us estimate the tank size for a home 5 members.
Tanks are typically buried 4 inches to 4 feet deep depending on local site conditions shape slope and other factors. The bulleted list below represents approximate septic tank sizes based on the number of bedrooms and home square footage. Septic tanks are usually about 4 5 feet wide x 8 0 feet long x 6 feet tall.