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Old 03-30-2018, 01:49 AM   #1
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THOR #9721
Toilet Water Disappearing

2017 Miramar 34.4. I believe our toilet is leaking. Sometimes when I go to use it, the top of the egg (the valve) is exposed above the water or very little water at the base of the bowl. I'm assuming the seal at the bottom of the toilet is leaking.

What is a way to validate that it is still installed properly or if it needs to be replaced? How do I know what toilet I have? It's a ceramic base.

Thank you!
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Old 03-30-2018, 02:11 AM   #2
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THOR #1150
The gasket on the ball valve wears out. I've already had to replace ours. Its fairly easy to do.
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Old 03-30-2018, 02:32 AM   #3
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THOR #4488
I have a 2016 Miramar and had the same problem. I found using a TP that is septic approved and allowing the pedal to snap closed solved my issue. It seems normal toilet paper would occasionally get stuck in the valve and shutting the valve quietly it wouldn't seat completely. I know it sounds weird but it worked.
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Old 03-30-2018, 02:52 AM   #4
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THOR #3483
Toilet Leaking

The other thing you can try is to get a tube of silicone grease, usually used for pool supply gaskets, comes in a tube. Put some on your finger (wear gloves) and rub it on the gasket.
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Old 03-30-2018, 01:13 PM   #5
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THOR #2812
Clean the groove that the ball seal closes into.(old denture brush, Q-tip) Then apply silicone grease. (quarter size container is lifetime supply)
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Old 03-30-2018, 01:26 PM   #6
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THOR #1183
If cleaning does not work it is possible that hard water deposits on seal and ball valve are causing the problem. Before replacing seal, with water supply off empty bowl, add full strength CLR - enough to cover black seal and let it sit - adding as needed to replace any leakage. Several hours should be enough. I do CLR every couple months and current seal is over two years old with fulltime use.
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Old 03-30-2018, 02:50 PM   #7
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THOR #9721
Good morning everyone. This is some great feedback. This coach is essentially a new and thought it might be a bit premature for this thing to wear out so soon. This morning, I was the first one up and the water level was normal. I'm thinking that perhaps there may be something inconsistent with how the foot pedal valve is closed might be an issue.

The CLR and pool silicone seal are some great tips!
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Old 03-30-2018, 03:23 PM   #8
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THOR #5820
Quote:
Originally Posted by axis earl View Post
The other thing you can try is to get a tube of silicone grease, usually used for pool supply gaskets, comes in a tube. Put some on your finger (wear gloves) and rub it on the gasket.


Yep, this is what I do and it works
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Old 03-30-2018, 03:23 PM   #9
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THOR #5326
I rub some Vaseline on the gasket about every 6 months no issues anymore
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Old 03-30-2018, 03:49 PM   #10
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THOR #8860
Could THIS be the problem?

http://www.thorforums.com/forums/att...1&d=1522424985
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Old 03-30-2018, 04:00 PM   #11
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THOR #3610
Quote:
Originally Posted by dcbenny View Post
I rub some Vaseline on the gasket about every 6 months no issues anymore
Vaseline is petroleum based, over time WILL deteriorate the seal. Better to use the silicone grease mentioned or buy a tube of plumbers grease sold at most hardware stores.
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Old 03-30-2018, 04:10 PM   #12
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THOR #8860
I agree!
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Old 03-30-2018, 04:16 PM   #13
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THOR #9721
Quote:
Originally Posted by Bob Denman View Post
Our dog weighs about 12 lbs. She can't even see over the edge of the toilet bowl much less drink out of it.
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Old 03-30-2018, 05:03 PM   #14
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Ours is only five pounds...
But we watch out for her larger friends!
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Old 03-30-2018, 09:34 PM   #15
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Quote:
Originally Posted by Tearstone View Post
Good morning everyone. This is some great feedback. This coach is essentially a new and thought it might be a bit premature for this thing to wear out so soon. This morning, I was the first one up and the water level was normal. I'm thinking that perhaps there may be something inconsistent with how the foot pedal valve is closed might be an issue.

The CLR and pool silicone seal are some great tips!
As to snap or slow release of pedal - it totally depends on brand and model. Some say let valve snap closed and some say slowly release pedal. Manual for your brand and model best source of info.
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Old 03-30-2018, 10:01 PM   #16
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THOR #2271
If the grease doesn't work, then you can buy a replacement gasket. On some models, you will have to remove the toilet to replace the gasket. On others, it can be done in place.

If the rig is new, ask the selling dealer to fix this under warranty.
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Old 04-08-2018, 10:14 AM   #17
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THOR #3992
Toilet seal

For what it's worth I keep a jar of Vaseline petroleum jelly put around the seal when we leave to go camping been working fine
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Old 04-08-2018, 12:33 PM   #18
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THOR #5246
Quote:
Originally Posted by Tearstone View Post
Good morning everyone. This is some great feedback. This coach is essentially a new and thought it might be a bit premature for this thing to wear out so soon. This morning, I was the first one up and the water level was normal. I'm thinking that perhaps there may be something inconsistent with how the foot pedal valve is closed might be an issue.

The CLR and pool silicone seal are some great tips!
Russ, on two different rigs we have purchased over the years this issue has presented itself. One unit was new and one was 18 months old. Our toilet seals had basically just dried out a little from the dealer having the unit with no water turned on or sitting in the bowl.

Once I lubricated the seal a couple of times and made sure the seal was clean we were good to go and the bowls began holding water again. If you are replacing these seals every year or so then there is something going in that bowl that shouldn't be.
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Old 04-08-2018, 06:06 PM   #19
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THOR #2271
Quote:
Originally Posted by dcbenny View Post
I rub some Vaseline on the gasket about every 6 months no issues anymore
You shouldn't use Vaseline.

From the Thetford page
Quote:
Can I use Vaseline (petroleum-based product) to lubricate the seal?
No, it will cause the seal to further deteriorate. We suggest use of a toilet seal lubricant or drain valve lubricant to lubricate the seal.
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