If your property has a septic system, there’s one important requirement you can’t overlook before closing: septic pumping and county inspection. In Washington state, this isn’t optional—it’s the law. But timing is everything, and understanding how the process works can save you time, money, and stress. At Onsite Real Estate Group, we help sellers navigate these details to ensure a smooth transaction. Here’s how it works and what you need to know.
Sellers must arrange to have their septic tank pumped and inspected before transferring ownership. This ensures the system is functioning properly and meets county health standards. Failing to do so can delay or even derail your sale.
First, a licensed septic service pumps the tank and submits a report. Then, the county performs its inspection based on that report. The two steps work together to verify the condition of the system and keep the sale moving forward.
📊 According to Washington State Department of Health:
Pumping the tank too early in the selling process can backfire. If the closing gets delayed, you may have to pay for another pump and inspection. We recommend scheduling the service right after your offer is accepted to avoid extra costs.
Waiting too long to pump your septic system can create roadblocks. If the inspection isn’t complete by the time you're ready to close, you risk pushing the date—or losing the buyer altogether. Being proactive is key.
Once the tank is pumped and the report is submitted, we work directly with the county to collect all required documentation. Our team ensures nothing gets missed so you can focus on the rest of your move.
Not all septic service providers are created equal. Need a recommendation? We can connect you with experienced, licensed professionals who get the job done right and on time.
