https://dwellingsales.com/2021/10/how-often-do-i-need-to-pump-my-septic-tank/
A lot of septic tank owners ask how often they will need to hire a cesspool operator clean their tank.
Though you’ll never get your septic tank pumped enough, it’s difficult to gauge precisely when the time is right to perform that maintenance. A good indication of the time when you should use an acesspool pumper is if the tank is 20% to 25 percent solids. However, without actually looking at the tank, there is no way to make that measurement. Some small ways to determine the amount of waste in the septic tank is to account for how many individuals are staying in the home. You can also look at how long ago the tank was empty. For a better idea, get somebody to open the tank to let you know what the contents of your tank are.
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