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Old 05-24-2014, 09:37 AM   #1
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Toilet Seal Leaking

The seal between the plastic toilet and the rotating valve is leaking. It was fine when I de-winterized but now drains overnight. It does not drain fast enough to see it go. I'm leaving on a short trip tomorrow so no way to get it replaced. Any short-term fixes or workarounds?

Is replacing the seal a reasonable DIY project?
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Old 05-24-2014, 10:42 AM   #2
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There isn't really anything you can do as a quick fix except to make sure there isn't something stuck on the rubber seal that is causing the leak.
As far as replacing the seal it's an easy fix that takes maybe half an hour from start to finish - I've changed mine twice in the past 4 years.
Google it and you'll find lots of stuff on Youtube.
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Old 05-24-2014, 10:55 AM   #3
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Rotate the ball valve to the full open position. Put on a new disposable glove and coat the seal with some Vaseline. I did this 2 years ago as a quick and what I thought was a temporary fix, but now 2 years later it's still sealing perfectly.

Dan
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Old 05-24-2014, 11:34 AM   #4
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Quote:
Originally Posted by Pelledan View Post
Rotate the ball valve to the full open position. Put on a new disposable glove and coat the seal with some Vaseline. I did this 2 years ago as a quick and what I thought was a temporary fix, but now 2 years later it's still sealing perfectly.

Dan
Thanks, I was wondering if that would help.
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Old 05-24-2014, 12:16 PM   #5
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We did the lubrication of the seal with pure silicone and ours is not leaking anymore either. I try to remember to re-lube every few months now as a preventative.
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Old 05-24-2014, 12:40 PM   #6
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Quote:
Originally Posted by Butte64 View Post
The seal between the plastic toilet and the rotating valve is leaking. It was fine when I de-winterized but now drains overnight. It does not drain fast enough to see it go. I'm leaving on a short trip tomorrow so no way to get it replaced. Any short-term fixes or workarounds?

Is replacing the seal a reasonable DIY project?
Butte64
I use full strength CLR: CLR Calcium Lime & Rust Remover - Walmart.com, in the bowl of my SeaLand toilet whenever it refuses to hold water, (which only occurs every year or two).

Pour in a 1/4 cup work the flush mechanism a few times, pour in another 1/4 cup let it sit and leak through, (replete once or twice if needed).

That has never failed during the 14 years I've owned my now 18 year old coach.

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Old 05-24-2014, 02:26 PM   #7
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Great info, thanks.
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Old 05-25-2014, 06:47 PM   #8
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I had the same problem. I cleaned with Sealand toilet seal cleaner. It also contains a seal lubricant. That was a year ago and so far not leaking. The other ideas with silicone sounds like a good idea. I am sure that Vaseline might work but I have heard that Vaseline is not be be used on rubber seals because it is made from petroleum.
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Old 05-25-2014, 07:07 PM   #9
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Plus 1 for clr we use it about once a month in the bowl also add to both tanks after dumping and let it ride for a while calcium builds up in tanks also haven't had any seal problems yet so guess it doesn't hurt.
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Old 05-25-2014, 07:26 PM   #10
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When we are tripping and I add break up, I leave about a 1/2 ounce in the toilet with about 6 ounces of water. I leave it there until the next user flushes. The CLR explained above sounds like good practice.
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Old 11-05-2016, 09:44 AM   #11
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I have had success with white vinegar - sitting overnight and then a kettle full of hot water from the tap. So happy to not have to replace the seal.
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Old 11-05-2016, 11:13 AM   #12
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Plumbers grease or Vaseline.
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Old 11-08-2016, 02:39 AM   #13
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15 Discovery 40E

Less than 2 years old, been leaking for the last year
Still under warranty got a new seal for free. Did every recommendation to get it to seal. Nothing worked. Finally just replaced seal, old one was coated in heavy crust of lime and scale. Had to use course steel wool to clean seal seating area. Used lots of silicone grease when installing new seal. Took 1/2 hour to get scale off old seal using Stanley knife. Applied silicone grease and bagged for next use. Crappy job done....for now.
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Old 11-08-2016, 04:57 AM   #14
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My seal quit holding, also.
So, after we got home from Fla in the spring, I looked up the schematic of my toilet.
I carefully took the unit apart and found that the seal was heavily coated with a scale buildup.
I soaked the seal in white vinegar and periodically scraped the softened scale off with a plastic knife.
Once completely cleaned, I treated the seal with some liquid Dow silicon.
Replaced the seal and it is still functioning perfectly.
I have some silicon in a small container in case I need to "treat" the seal.
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