Forum Discussion

Explorer

May 04, 2016

Valterra Bladex 3" waste valve

I have to replace the dump valve for my black tank. It looks like a fairly simple job. There are 4 bolts keeping it in place. I have a new one but the problem is the 2 rubber seals that came with it. The seals are not flat. One side of each seal has a smaller diameter with a raised face. Does this smaller diameter with raised face go in TOWARDS the Bladex valve or AWAY from the Bladex valve? I've heard that when I remove the old valve the old seals will fall out and I might not see what direction they were facing. Thanks for any help!

Seeking Advice

14 Replies

Byrogie
Explorer
May 04, 2016
If it needs replacing the seals will probably not fall out. Mine were stuck pretty good.
The new one had the seals in place.
salem
Explorer
May 04, 2016
Rubber Ducky1: Back on June 15 of last year (2015) I posted a question re. replacing the black tank valve. Several members offered some worthwhile advice that would have made the job easier if I would have asked before I tried doing it myself.:S It may be worth your time to look at that thread unless you're an old hand at this. Good luck.
2oldman
Explorer II
May 04, 2016
Surprised there's no diagram on the back of the package it came in.

Those seals are a b-itch and may take time to get them seated. If they aren't seated properly, it will leak.
Chris_Bryant
Explorer II
May 04, 2016
They taper in towards the blade- they fit over a lip on the valve adapter.