How Often Should You Pump Your Septic Tank?

The general rule

A common guideline for a typical household is every 3 to 5 years. Your actual interval depends mainly on three things: tank size, how many people live in the home, and how much solid material goes down the drains.

Pump more often if

• You have a large family or frequent guests
• You use a garbage disposal
• Your tank is on the small side for the house
• You have an aerobic system and your provider reports high sludge levels
• The house sat vacant, then suddenly sees heavy use (common at lake houses)

Signs you're overdue

• Slow drains throughout the house
• Gurgling pipes or toilets
• Sewage odor outside
• Unusually green, lush grass over the tank or drain field
• Backups during heavy water use

Not sure when your tank was last pumped? Have it pumped and inspected, and ask the company to note the date and recommend a schedule. Request septic pumping.