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Toilet has possible seal problem


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What kind of toilet. Most have a ball or flat valve that engages a seal to create a water holding seal so that a measure of water stay in the bowl after flushing.

 

Obvious the seal is the issue. You don't put stuff on the seal, you fix it. One thing to start is to scrub the bottom of the seal (the surface that engages the ball/flat valve) with a brush/cleaner. The next thing is replace the seal.

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I agree with Mark and Scott and in that order. First make sure that the seal is clean. If your toilet has one of the blade type valves, use something to hold the blade open and carefully clean inside of the slot the blade fits into. There is an O-ring in the slot so use care not to damage that seal. Once is it completely clean you can use some silicone grease to coat that seal, making sure you get it down into the slot if blade type. I've not owned the ball type of toilet so have no experience with those but any of them need to be clean and the silicone grease will act as a lubricant that stays in place a long time with the use of water and so it helps to keep the seal flexible and helps it to do it's job.

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We have the ball type flush valve. (Sealand brand) When the water leaks out we had to clean it by letting white vinegar sit in the bowl for an hour or two to clean the flush ball area. After a couple of years of that we finally had to change the flush valve. I found the instructions on line for doing that and it only took about 45 min. Now no more leak down problems. If you don't have water in the bowl, you'll get bad odors up from the tank below. The water makes a vapor seal to prevent that. I should have just changed the valve earlier rather than messing around for a couple of years. Lesson learned on that one!

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The main culprit that causes issues is just plain old hard water. Well water with lots of minerals and calcium are prevalent in older campgrounds and many state and federal parks as well.

 

Like many others here we now use a water softener when we're at a location where the water is hard. We don't bother with it for short stays, but we use it anytime we're in one place for a while. It's pretty easy to recharge it every couple of weeks with a few pounds of table salt.

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Thetford makes a product specifically for the toilet bowl seals. You pour it into the bowl and let it sit for as long as possible. When my ball type started to get slow to return I poured some in just before a month of storage. Worked perfectly. I haven't had to use any more for over two years but will look for another bottle if I need it. I don't know if that's what you used but it worked for me.

 

Rich

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Wow! You all are fantastic! Thanks for the good suggestions. We purchased the grease silicon stuff, but before we could clean it & seal it the problem stopped!!! All we did was empty the black tank! I was thinking maybe the tank was swelling because of the heat & it being almost full. With the swelling maybe the seal was affected? After we emptied it all was back to normal. So my new rule is to empty the black by the 3rd day!

 

THANK YOU EVERYONE! You are very kind to help us in time of need. It is much appreciated!

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