How Often To Pump Septic Tank 2021. For starters, it’s important to note that how often you should pump out your septic tank is entirely dependent on how quickly it fills up. But generally speaking, you should pump out the septic tank once every 3 to 5 years.
However, in general, you should pump your septic tank every three to five years, depending on a number of factors. One tip for when it’s time to utilize a cesspool pumper is when the tank is 20% to 25% solids. As waste is continuously deposited into the tank from your home, the heavy materials will accumulate along the bottom and slowly fill the containment area.