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Old 06-16-2021, 09:53 AM   #1
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Join Date: May 2013
Location: North Myrtle Beach, SC
Posts: 365
2002 motorhome toilet leak

We had staying in our motorhome for a month. They didn't know how to use the toilet properly. They produced the dreaded "mound" in the blackwater tank and let it get so high that the water was above the flange on the floor. Of course, they kept using it, and every time they flushed, water kept getting higher in the toilet. It leaked out past the seal and destroyed the new flooring in the bathroom. I tore out all of the flooring, dried out the plywood with rags, and have two fans drying it out before replacing the flooring yet again.

My question is: are the seals on the bottom of the toilet, the foam one, supposed to prevent water from leaking out, or is the seal just there to prevent odor from coming into the bathroom? If that seal would have been water proof, I think the outcome would have been different.

It is a 19 year old toilet. i m guessing there must be either a toilet upgrade with a different seal that would prevent leaking, or possibly a flange seal upgrade that would do the same.

thanks for any thoughts on this matter.

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Old 06-16-2021, 10:55 AM   #2
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Foam/rubber seals are used for a reason
Vibration/bouncing/HEAT....wax rings will not hold up

YES they seal against tank odors AND seal against WATER

19 yrs ---how often have you checked that the toilet hold down bolts were SNUG?
***Vibration/bouncing----should also go thru all electrical connections and insure they are tight----YEARLY

Your 'guests' did you wrong!
By allowing water all the way up the toilet pipe they created a situation that was gonna LEAK no matter what

You did yourself a disservice by NOT making sure they understood how to properly use an RV Gravity Toilet.

They are contributing to the costs of repairs....correct?
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leak, motor, motorhome, toilet

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