Black & Grey valve trouble

[COArgosy78]

Bob - your valves should unscrew (4 screws) and come off the PVC, then as stated above, go to HD or Lowes and purchase PVC you need. We were able to use 1 of our old valves w/some clean up and purchased 1. The rubber connectors w/clamp work great to reconnect everything.

[Crazyland]

Went up to Andy's Inland RV and picked up new valves and completed the job last week. The valve job was not near as difficult as I thought is was once I got acccess. I guess that's the common conclusion. I am now working on having to replumb part or the entire trailer because of the many split lines. Thx for all your comments. Bob

[raebaker06]

I have a 72 Argosy and had the toilet and the Black water valves changed By ME. a big and not so fun job.
After a number of years they too started to leak. I had an old toilet bottom and was looking at it and found how it works. I then with all the system cleaned out I put a pail under the outlet and poured about 3 quarts of water into the toilet and then put about 2 cups of pool acid (muriatic)
into the water and dumped it into the holding tank. I then repeated this into the toilet and let stand over night. The level in the toilet (which alwayd leaked was as when I filled it. and no water in the black water outlet.

NOTICE: always pour the acid into the water never water into the acid.

I do beleive that with the soil and mater going into the system it would be wise to do this every few years and NEVER LET YOUR TOILET OR HOLDING TANK STAY WITHOUT SOME WATER OR SUCH IN IT to keep the valves from drying out.
If you store put some mineral oil in the tank and toilet.
Also make sure you have eye protection and have the air vented for the fumes.

Rae Burlinto Ontario.

[Mrcrowley]

I have gutted the 1997 soveriegns full bath that I own all the cabinets and the fixture roof covering (Had to get to a burst pipe against the wall of AS). I also will be resurfacing the tub shower stall and sink with Tough as tile later. Now the floor is not that bad discolored but not soft (one 1 foot part is wet about 1/8 of a inch or less).
The pipe that burst was swollen and is swollen about a foot both ways of the hole so I need to replace the pipe I was wondering if I should replace the 8 foot span back to the pressure valve with pex and run water through and see if I have any more leaks or bursts (if not) leave as is OR should I replace it all with Pex even if there are no more leaks?