About three or four years ago, I replaced the Microphor toilet in my coach with a Dometic toilet. It has the round ball that rotates to flush and has rubber gaskets to make it water tight.
Well it no longer holds water and will leak down over a few hours. Has any one else had this problem? If yes, what is the solution, other than buying a new toilet.
Hey Steve, try some CLR for a couple of hours, then. Then clean as best you can with an old tooth brush on the sealing surface. Don't get your tooth brushes mixed up😬👍
And if that doesn't work I'm thinkin you'll have to pull the top half and replace the rubber gasket.
Replaced ours a few years ago with the dometic that you change the seal from the top..... I love that.
Just had our toilet seal repaired while at FOT. Had to pull toilet and flip it to repair ball seal... holds water now. Dometic/Sealand toilet...could have done myself, but we were here getting other stuff done and only cost a couple hundred bucks...not much in the scheme of things😂😂
The rubber seal can be replaced from above. You should be able to see the black seal.
Hold the flush handle down and reach in and grab the seal and pull it off, then you have to make the new seal "snap" in or it will fall off and be in the black tank. I am sure the ball needs to be cleaned good also. A little silicon spray or even a thin film of vaseline will help for awhile. The seal dries out and gets brittle when there is no water in it.
I hope this helps
Ron
If you don't want to use CLR try vinegar, same process. I use silicone plumbers grease to lube the seal on our Microphor toilet, works great. I have read someplace where vaseline (a petroleum product) can be hard on rubber parts.
I just went through this, it's pretty easy to do. There are 2 Sealand/Dometic rubber kits, with the circle and without. You can also check if you have a drain tube from the base. If you have the circle/drain tube, I have a new kit I'm going to sell, I bought the wrong one, otherwise Amazon has the other type. My post has photos of this as well as the why.
post Sealand toilet base (https://www.foreforums.com/index.php?topic=43416.msg438848)
I'd also recommend going a step further and replacing the seal for the base, it comes with new bolts. Yours may be good if it was replaced a few years ago but if it wasn't it's a leak waiting to happen. LMK if you have any questions.
Thanks guys. I will try vinegar, because we have that. I will move down the repair list if that doesn't work
This site is the best
Another "trick" is to clean the recess/rubber seal.
Take an old fashion wood clothes pin and cut it down to just narrower than the recess. Use it to clean the recess. All it takes is a small piece of toilet paper stuck in there to cause a leak down. Yes, be gentle.
And agree with lubing with silicone plumbers grease after cleaning.
You can hold the ball open and feel the underside of the seal with your finger, detecting any deposits that may allow leakage. If it is rough, empty the bowl and put a paper towel over the closed seal and add a bunch of vinegar OR use something like CLR Lime Away. The paper towel will delay the seepage and let the calcium have time to dissolve. Then, you can use toothbrush, fingernail, nylon scrubby sponge ... anything gentle enough not to scratch the seal but strong enough to rub off the deposits ... to get it smooth. We used a very sticky silicone paste on our cleaned seal for lubrication. May soak into the "rubber" a bit, but it keeps the seal soft for a good while and resists deposits building up. Of course, replacing the seal is a good start, also, and then you can just clean regularly and maintain.
I know more about that everlasting commode than I EVER wanted to.
I am at FOT now and had the same issue after I wintered in Yuma last year. Should have used my filtration and softener always and didn't. They had to remove and take it apart. Replaced all the seals after cleaning the calcium buildup off. Works great now.
I worked on cleaning the gasket today. Wow,the gasket is black not light tan. Yeah there was a lot of calcium. I ended up using my finger nail to scrape it off. The vinegar didn't begin to dissolve it. It still leaks out, but slower than before.
I will work on it again in a few days. Based on previous discussion there should be a groove in the gasket for the edge of the ball valve to fit into. I will work on that on the next "fix it" attempt
When my Dynast toilet was leaking I emptied the bowl and poured CLR into the
bowl and left it overnight. That fixed it.
There are 2 grooves, one to keep it in place, this is the right front as your facing it. The larger hole is at the rear at the 12 o clock position. Do you have a tube coming from the rear of the base? This is not the spigot or water valve tubes. The hole at the spot is larger than the 5 o'clock stay. See my other post for pics of this larger hole. In my case, I had the hole in the base but the drain valve was plugged. Other thread states why.