How often should you pump a septic tank?
Every 3 years.
Only some homes need this one. It is optional on the checklist and starts switched off in the tracker.
How to do it
Have a licensed septic service inspect and pump the tank. Every 3 to 5 years is typical, sooner for a large household.
Why it matters
An overfull tank pushes solids into the drain field, which is far more expensive to fix than the tank.
Recommended interval: every 3 years, per U.S. EPA.
General guidance for a typical home; the manufacturer's instructions come first.