Black Tank Flushing Hose leak repaired.

[Ragman]

While dumping and cleaning my black tank, I noticed water dripping from above into the dump valve compartment on my 2000 34 ft. Sea View. Next time I dumped, it was worse, almost like a hose had become disconnected.

When I arrived home, I removed the black panel at the top of the compartment. There were two water lines coming from above; one was the sprayer for the black tank. I then pulled off the black cover in the water valve compartment. (Mine is located behind the rear wheel.) Using a flashlight and mirror I could still not see a connection to the black tank.

I finally removed the wood panel behind the toilet (5 screws)and found there are two valves; one brass and one white plastic. The brass valve was leaking badly and the plastic valve would not allow water, under pressure, to pass through, either way. The section of pipe with the valves was easily removed without tools.

I went to Lowes Home Center and purchased a 1/2-inch brass swing check valve (prevents backflow)($7.03), a 2-inch threaded nipple (42 cents), and a 1/2-inch threaded elbow ($1.50). Using some of the old fittings put everything together and works like brand new - for less than $10.

It would be an easy fix on the road if you have access to a home center, hardware or plumbing supply. Hopefully this may help someone in the future.

[Ragman]

While dumping and cleaning my black tank, I noticed water dripping from above into the dump valve compartment on my 2000 34 ft. Sea View. Next time I dumped, it was worse, almost like a hose had become disconnected.

When I arrived home, I removed the black panel at the top of the compartment. There were two water lines coming from above; one was the sprayer for the black tank. I then pulled off the black cover in the water valve compartment. (Mine is located behind the rear wheel.) Using a flashlight and mirror I could still not see a connection to the black tank.

I finally removed the wood panel behind the toilet (5 screws)and found there are two valves; one brass and one white plastic. The brass valve was leaking badly and the plastic valve would not allow water, under pressure, to pass through, either way. The section of pipe with the valves was easily removed without tools.

I went to Lowes Home Center and purchased a 1/2-inch brass swing check valve (prevents backflow)($7.03), a 2-inch threaded nipple (42 cents), and a 1/2-inch threaded elbow ($1.50). Using some of the old fittings put everything together and works like brand new - for less than $10.

It would be an easy fix on the road if you have access to a home center, hardware or plumbing supply. Hopefully this may help someone in the future.

[TropiCal-Tex]

My 1999 Tropi-Cal 6371 had a similar problem. The black tank flush would build up pressure in the hose connection, but no water went into the tank.
I removed the wall panel behind the toilet and found that the "one way, anti-siphon valve" was installed backward. It was easy to unscrew and reinstall correctly. Problem solved.