10/26/2026
Pumping your septic system's tanks is vital to the lifespan of your system. The goal of pumping is to remove the solids, fats, oils, and grease from your tanks. A system that is not pumped regularly will eventually fail.
What Happens If You Don't Pump?
- Solids accumulate and can make their way out to the drain field – leading to premature failure.
- Can experience a backflow of sewage into household drains.
How Often Should You Pump Your Tanks?
- When solids/grease make up for 30% of the tank’s capacity. This depends on the size of your tank and overall use.
What Behaviors Impact Pumping Frequency?
- Using a garbage disposal.
- Letting food waste go down the drain.
- Using non-septic-friendly toilet paper.
- Increased use - more people in the house.
To hire a licensed septic professional, please visit our website: https://www.islandcountywa.gov/678/Hiring-a-Professional---Industry-Contact