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Old 08-19-2019, 08:51 PM   #1
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Vanishing toilet water mystery

I had been struggling with the water in my toilet disappearing while in storage (indoors). I had a service guy check it out and he could not find anything wrong with the seal. He had me do a test, where I put a piece of blue painters tape inside the bowl and filled it to the bottom of the tape. I left it parked in on the street in front of the house for 3 days and checked it every day, but the water level stayed right at the tape. So, I took it back to storage and picked it up again 3 months later. Yep, you guessed it; the water was gone. It was bone dry...

I spent the whole week we were out trying to figure out what the heck was going on. When it came time to take it back to storage, I tried one more experiment; After I added the water, I covered the top of the toiled bowl with plastic cling wrap.


Another 3 1/2 months went by before I picked up the trailer again. When I checked it this time, the water was still in the bowl!!! I 've done this same thing ever since then, and there's always water in the bowl, no matter how long I leave it in storage. The only thing I can figure is that in the dry air where I store it, the water was simply evaporating!


Don't know if anyone else has had this issue, but I seemed to have fixed my problem with a little saran wrap!
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Old 08-20-2019, 04:26 AM   #2
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Yep it can happen. I caretake some houses in a rich development since I’ve retired. I once smelled propane in one of the houses and had to call out the gas company to check it out. Come to find out all the water had evaporated from the elbows in the sink drain, letting gas’s escape from the sewer into the house. Just wondering, but for 20+ years when I winterize my unit I never leave water or antifreeze in the toilet. Never found it messed up the seal by leaving it dry.
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Old 08-20-2019, 01:53 PM   #3
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You can always add a bit of non tox antifreeze into the traps and the toilet bowl, it doesnt evaporate as easily
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Old 08-20-2019, 07:43 PM   #4
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When not using the RV for extended periods, I use a splash of Mineral oil in all the sinks, shower and toilet. Will not dry out and when it goes down to tank, it will lube the tank valve
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Old 08-21-2019, 07:16 PM   #5
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Like Mark, I also use mineral oil.
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Old 08-23-2019, 06:03 AM   #6
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Quote:
Originally Posted by mark5w View Post
When not using the RV for extended periods, I use a splash of Mineral oil in all the sinks, shower and toilet. Will not dry out and when it goes down to tank, it will lube the tank valve
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Originally Posted by DavisK View Post
Like Mark, I also use mineral oil.

I just caught this.
Isn't mineral oil harmful to rubber seals and gaskets?
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Old 08-23-2019, 08:55 AM   #7
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I use BABY oil to lube the seals. Get it from the Dollar store.
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Old 08-23-2019, 01:03 PM   #8
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I'm SORRY. I have to make a correction to my post. My darling wife reminded me that I use Olive oil, NOT mineral oil. That's why I married a younger girl. I'll lose my memory before her, so she's my back up.
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