Black tank valve replacement

[JBM3M]

Originally Posted by JRTJH

There's no need to alter your current setup to install an additional valve on the terminal end of your discharge plumbing. Valterra sells a "twist on valve assembly" that simply replaces the cap, then you put the cap on the other side of the Valterra valve. Here's one link. https://www.amazon.com/Valterra-T58-...ra+waste+valve

Many of us have installed this valve as "insurance" against a leaking valve in the "bowels of the RV".....

This is how I fixed my leaking valve. Works great and no more mess

[skids]

The other thing that may be done is to replace part of the valve. Keep the part that is cemented to the black plastic pipe. Unscrew the corner bolts and see the seals that can be replaced. I did this to an old system and apparently the changes through the years were minimal.

[chuckster57]

Originally Posted by skids

The other thing that may be done is to replace part of the valve. Keep the part that is cemented to the black plastic pipe. Unscrew the corner bolts and see the seals that can be replaced. I did this to an old system and apparently the changes through the years were minimal.

Often times it’s the seals that fail. You can get new seals, you just need to know which ones, there are 3 and yes they are different.

1) Valterra BladeX- fits all Valterra valves
2) Valterra- fits Valterra valve
3) Bristol- fits Bristol valve

All 3 may look the same, but I know from years of working on them that the flanges are slightly different. Not fun to just put a set of seals in, fail the test and have to do it again.

[travelin texans]

Originally Posted by skids

The other thing that may be done is to replace part of the valve. Keep the part that is cemented to the black plastic pipe. Unscrew the corner bolts and see the seals that can be replaced. I did this to an old system and apparently the changes through the years were minimal.

It would be a very rare occasion that the entire valve assembly would need replaced, typically just the gate assembly with new seals or just seals & dig the crap (pun intended) out of the gate groove.

[Balvar24]

I would avoid biting my fingernails.

[Jim2366]

The black tank valve is being replaced at an RV dealer. I will post the cost so that when people read how to do it themselves they will know what it cost to have it the work done by a shop.