mikestock wrote:
I know I'm probably not the first to think of this. It is not a complete rinse but it does help insure that all of the particulates get dumped.
If your dump is set up like my Phaeton it works well. I first, try to let my gray water tank fill as much as safely possible before dumping. When I get to the dump station I dump the black tank as usual. Then, leaving the black water valve open, tilt the manifold upright with the hose still attached and open the gray water valve, forcing several gallons of gray water to backflow into the black tank. I then close the gray water valve and tilt the manifold back down, allowing the black water to empty again. From this point you can lift the manifold and let a little more gray water into the black tank before finally closing the black water valve. This leave a little water in the bottom of the black tank if you care to add deodorant. Finally, finish dumping the remaining gray water, as usual.
Just gives me a little more confidence that all of the particulate remnants are allowed get removed.
Sounds like a very reasonable procedure. I have found that with all the soaps that go into the gray tank that it also somewhat "washes" the black tank if only a little bit. A few gallons of "soap-ish" water is probably doing wonders in there.
