Where to empty your holding tanks

Not your favorite part of boating... but has to be done. Below you'll find where you can pump it out yourself... or mobile services that will come to your boat and do it for you. Always TIP the operator!

Holding Tank Pump-Out locations (self-serve)

Northern Puget Sound


Including the San Juan Islands. From Washington State Parks Boating Program.

Find a location

Seattle Area


Seattle area pump-out stations. From Washington State Parks Boating Program.

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State - wide pumpout locations


This isn't a very complete list (compare to the resource shown to the left), but it is state-wide. Locations and details on boater pumpout stations in Washington. Provided by Sport fish restoration Trust, Washington State Parks and Washington Sea Grant, using Google Maps

Find a location

Mobile Pump-Out Services (TIP the operator!!)


FREE Lake WA, Portage Bay, Duwamish, Gig Harbor, Liberty Bay, Poulsbo

Terry and Sons

Lake Union, Lake Washington, Shilshole, Ship Canal

Seattle Sanitation Services

Seattle, Anacortes, La Conner


Shilshole to Portage Bay

SS head