Homemade Grey Water Transfer System
When boondocking or dry-camping off-grid, grey water tank capacity is often the first bottleneck that shortens trips. Installing a grey water transfer or diversion system allows you to pump grey water into portable tote tanks or alternate holding tanks without moving your trailer.
System Setup & Components
- Mount a 12V DC 12V RV macerator pump onto your main 3-inch sewer bayonet outlet fitting.
- Install a inline 3-way PVC diverter valve to route discharged grey water smoothly between tanks.
- Connect a heavy-duty, kink-resistant 3/4-inch commercial water hose to transport macerated fluid to a portable transport tank or remote receiver.
- Wire the 12V pump motor through a 20-amp inline fuse directly to your house battery bank using a waterproof switch.
See also:
- RV Holding Tanks – Managing black and grey waste tanks.
- RV Waste Valves – Servicing gate valves and replacing rubber seals.
- Homemade Sewer Hose Holder – Building a PVC bumper-mounted sewer hose carrier.