Dump Valve Lubricant
I've recently replaced the slide valve seals on the black water tank. check for leaks and none seen. The valve seems to be a little harder to operate when no liquid is in the tank. I don't believe the...
Forum Discussion
ernie1 wrote:
Can't say exactly what material the dump valve seals are but absolutely do not use any petroleum based lubricant on them. They WILL swell and cause all sorts of problems. Use a silicone based lubricant and not a petroleum based one!
I would agree. There are many warning in multiple RV parts not to use anything that is petroleum based, so why take a chance when a silicone product will work. Not to change the subject, but on the slide seals they say to use silicone spray and on my Big Foot system they say silicone or Teflon spray. YOU DO NOT USE SILICONE CALK HOWEVER.
