The average cost to pump or clean a septic tank falls between $285 and $520. The exact price depends on the size of the tank and whether any of the parts need replacement because of degradation or age. Most cleaning services charge by the project.
The most common repair element in the cleaning process is the tank filter, which ranges between $100 and $200 for most models. Replacing other parts, like PVC pipes and pumps, can range anywhere between $50 and $500.