Free tool
Does my septic tank need emptying?
Get a recommended emptying frequency for your tank and find out whether it's due now — based on size, how many people use it, and any symptoms you're seeing.
Does my septic tank need emptying?
Answer three quick things for a recommendation.
Common questions
How often should a septic tank be emptied?
As a rule of thumb, most domestic septic tanks need emptying about once a year, but it depends on tank size and how many people use it. Larger tanks or lower occupancy can go longer; busy households with smaller tanks need it more often.
What are the signs a septic tank needs emptying?
Slow drains, gurgling pipes, bad smells, wet or lush patches over the drainage field, and sewage backing up are all signs the tank is full or the drainage field is struggling.