Free Boat Sewage Prevention Kits to Help Boaters Protect California Waters
Published June 29, 2026
The Sacramento-San Joaquin Delta Conservancy offers free deck adapter and Y-valve kits as part of its Clean Vessel Act Program. Launched in 2025, the program educates recreational boaters about proper vessel sewage disposal and the importance of using pumpout facilities.
- Y-Valve Kits: Includes the supplies needed to direct boat holding tank waste to a pumpout station rather than overboard. The kit includes instructions and an information guide, opened and closed stickers, non-releasable zip-ties, dye tabs for leak detection, and an enzymatic digester.
- Deck Adapter Kits: A deck adapter is a connector designed to screw into a boat’s deck waste fitting. To use the adapter, boaters remove the deck waste fitting from their boat’s holding tank and screw in the deck adapter. Once in place, boaters remove the nozzle head from the pumpout unit, clamp the hose on the adapter, and enjoy a hands-free pumpout experience. Deck adapters are available in 1.25” and 1.5” diameters and include instructions and disposable gloves.
Why does it matter? One toilet flush of untreated sewage from a boat can cause the same environmental impact as 10,000 flushes from a home toilet. Pathogens, waterborne diseases, fish mortality, and habitat degradation are all potential consequences of improper sewage disposal.
Click here to order your kits.
Do your part to protect our waterways – order your free boat sewage prevention kits today!
Funding for this program is provided by a Clean Vessel Act grant, administered by California State Parks Division of Boating and Waterways, and funded by the U.S. Fish and Wildlife Services, Sport Fish Restoration and Boating Trust Fund.