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ford-willy
Explorer
Aug 16, 2016

Toilet Ball Seal -- Winter Care?

OK, I winterize my trailers well. But come Spring I have to deal with the possibility of a damaged toilet ball seal and the replacement hassle. I have tried the following.

1. Put 1/2 gallon of RV antifreeze in toilet to keep seal moist and cover toilet bowl with plastic wrap to slow down evaporation.
2. Keep toilet bowl empty and dry.

I'm replacing a seal right now.

Has anyone tried spraying the seal with silicone spay or rubbing Vaseline under and over the seal? Then keeping the bowl empty.

What do you all do?

23 Replies

  • I've never replaced mine. It did start leaking a while back and I used a toilet bowl brush and stuck down the hole and gave the seal a good brushing, and the leak stopped. For winter I usually just put some pink in it, and that usually comes in when I winterize the water system.
  • I lube the ball seal with O-Ring Lubricant. (what I can reach of it with my finger)...Then some pink anti-freeze in the bowl.
    Don't use Vaseline. It's petroleum based and can actually harm the rubber seal.

    Lowes, Home Depot
    Aqua-EZ-O-Ring-Lubricant
  • I just pour some pink AF in the bowl. Not much at all. I've never found that it 'evaporates'. I check it about every other weekend during the winter. Always has the same amount in it.

    During the summer, when I'm using it, I always make sure it has water in it. Always holds the water between trips.

    It's the same seal from 2002 when I bought the rig brand new. I've never put anything on it other than the AF and water.

    Good luck!

    Mitch

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