My black tank valve is stuck. Easy lube fix?
For sometime the black tank valve handle has been becoming increasingly difficult to open and close. Now it’s game on. It is next to impossible to close once opened. Is there a simple lubricant fix...
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I quit using any petroleum products on the dump valve seals after figuring out that it was reacting with rubber in the seals and causing them to swell and when that happens either the slides were extremely hard to move or the seals become dislodged when pulled by the slides and all hell breaks loose along with the sewage. I now use a product produced by Dupont called 111 Compound which is a heavy bodied silicone based lubricant that will not react with the nitrile rubber based seals. Learned this from talking to the people at Drainmaster, a company that produces electrically operated waste line valves which ,by the way, has operated flawlessly for a couple of years now.
