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Old 06-07-2018, 03:36 PM   #1
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Toilet to tank leak

First time out with our Que. When we were emptying the tanks, my husband noticed a leak from the black water tank. Closer look, where the tank attaches to the toilet developed a size able leak. From the outside.

When I look inside the toilet, there is a red rubber thing. Technical word, “ thing” since I don’t know what to call it. Looks to be off center. Misaligned. Can someone tell me what the name of this “ thing” would be?

When you push the foot flush pedal it puts water in the tank and on top of the tank.

I assume we will need remove the toilet to replace this?
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Old 06-07-2018, 09:44 PM   #2
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Hi, I will see if I can help.

You stated
Quote:
Closer look, where the tank attaches to the toilet developed a size able leak. From the outside.
I do not know your exact Que setup, however most Sunlines and all other brands to use a special foam ring as the seal between the toilet and the tank flange. It is called "floor flange seal" or sometimes a "closet flange seal". In a home toilet they use a wax ring as the floor flange seal. But in a camper that flexes a lot, they use the foam rubber ring.

If you have the Sunline manual for your camper, in there should be a product flyer and hopefully a parts diagram with part numbers. The foam seal to match your toilet will hopefully be listed there.

If not, then find the model and brand of the toilet, the newer Sunlines used a Sealand toilet but your Que may have something different. There may be a sticker on the base are of the toilet. If you have the model and make you can or tell us and we can help search for a parts diagram on that model and then you can get the floor flange seal.

Yes, to get to floor flange seal, you have to lift the toilet off the floor.

Hope this helps

John
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Old 06-08-2018, 06:21 AM   #3
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John, thank you very much for the reply and offer to help.

I will look for model numbers and go from there. We don’t have any manuals.

Our approach will be to remove the toilet and see what we find.

Thanks again for the information.

Debbie
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Old 06-08-2018, 07:35 AM   #4
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When you have the toilet off, inspect the pipe between the floor flange and the tank. It's probably a 6" pipe or so, threaded on both ends. I had one cracked on a trailer I bought. It's pretty easy to change once the toilet is out, and the part is readily available at an RV dealer. Just shine a flashlight down the pipe and look for any obvious cracks.
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Old 06-08-2018, 07:39 AM   #5
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Great suggestion, thanks!

Will post on what we find.
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Old 06-08-2018, 09:47 AM   #6
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Back to report:

Toilet off. It is a Dometic, Sealand, model 210.

When we removed the toilet there was a red multi layered thing that was misaligned. Maybe an RV version of a wax ring? We assume the reason for the leak?

There is a flange. The toilet sets on the bolts that extend from the flange. The flange was screwed to the floor. The flange will NOT come off. If I attempt to wiggle the flange, my husband sees the tank, from underneath wiggle.

Thoughts?

Additional information. The previous owner put in a new floor, he did not remove the flange, the tile/ linoleum was cut from around the flange. New floor butt against the flange. So this must be the original set-up? Assuming the previous owner removed the toilet to replace the flooring and when he put the toilet back on, the lip or edge of the red thing rolled the wrong way.

Please excuse my lack of technical terms.

Thanks again for your help.

Debbie
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Old 06-08-2018, 10:01 AM   #7
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Hi Debbie,

It sounds like the previous owner may have reinstalled the toilet with a residential wax ring instead of the proper foam part. If you squeeze the ring, does it change shape like pinching wax would?

This looks like the part you need:

https://www.amazon.com/Dometic-38531.../dp/B00FFDPPCA
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Old 06-08-2018, 10:12 AM   #8
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Heres a photo of what we found between the flange and the toilet
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File Type: jpg EB402BC6-0FF2-41D9-AAF6-55356D14EB12.jpg (92.2 KB, 3 views)
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Old 06-08-2018, 10:16 AM   #9
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Here’s an additional photo of the misaligned red thing.
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File Type: jpg 376B18D8-0BCA-4713-9F35-85F21CD17C85.jpg (107.4 KB, 4 views)
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Old 06-08-2018, 05:23 PM   #10
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That ain't right, an RV dealer will have what you need a house hold one will not work for long they are made of wax it will melt in a closed up camper.
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Old 06-08-2018, 05:32 PM   #11
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Sorry if I gave you the wrong impression, the one we took out was NOT wax. It was flexible rubber. There were 3 layers to it, looked online, can’t find anything that even looks close to it? Who knows.

We plan to use the appropriate replacement.

Since we removed the toilet we decided to replace the floor the previous own installed. Not to our liking.

I did find an online source for a parts list for our toilet.

Sure do appreciate all the help.

Debbie
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Old 06-08-2018, 05:57 PM   #12
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As long as the toilet is out, think about replacing it with a chair height model, finances permitting. I have the model 310 in mine. It is 17" from floor to rim. Almost 18 1/2" to top of seat.
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Old 06-08-2018, 05:59 PM   #13
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Thanks, never thought about that.. will look into it.

Debbie
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Old 06-08-2018, 08:43 PM   #14
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That "red thing" is not right for a 210 Sealand. Really have no idea what that is.

In case you want to get the tank flange out of the tank to do some floor work. See this post with pics. It screws into the tank

Toilet to Black Tank Connection - Need help

Keep us posted on how this goes.

John
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Old 06-08-2018, 08:47 PM   #15
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I forgot about this post when I was trying to get my toilet flange out of the tank and maybe you do not have access to the same things I did to make a spanner wrench for the tank flange. OhhWell created his own from screwdrivers and a piece of metal. It did work for him. May depend on how stuck or tight the pipe nipple is threaded into the tank

Bathroom Floor Repair
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Old 06-09-2018, 02:54 AM   #16
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Progress and “Red Thing”

Here’s what I think is the red thing. Korky Toilet Seal Rubber and Foam(6000BP) - Wax Gasket Rings - Ace Hardware

Korky toilet seal rubber and foam. Obviously not for RV applications.

Our first thought was the flange was glued in. For fear of breaking something we did not try to remove it. We agree, we think it’s screwed in.

We decided we will not attempt to fix what isn’t broken. The flange is secure to the tank. The floor around it is good. The leak was because the red thing was misaligned and the toilet did not seal to the flange. Water leaked between the flange and the red thing and made its way to the outside top of the tank and to the ground from there. Minimal water inside.

We filled the tank with water, a few inches from the top of the flange. (Toilet off) no leaks anywhere.
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Old 06-09-2018, 08:16 AM   #17
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You did good hunting down that Korky home toilet seal. Your right, not the one for your RV need.

Odds are high that the tank flange pipe screwed into your black tank is not the problem unless the 3" pipe is cracked. Mine had pipe thread compound on it from the factory which would be standard practice to seal the threads. Using a flashlight look down the pipe for any signs of cracking.

Let us know how this comes out and it would be great to see pics of you floor redo. We all learn new things from someone fixing something...

Thanks

John
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Old 06-09-2018, 06:05 PM   #18
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Good luck getting the flange to move I did get mine to move maybe 10* I my case that was all I needed so my knees were not against the cabinet!
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Old 06-09-2018, 06:25 PM   #19
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Quote:
Originally Posted by mainah View Post
Good luck getting the flange to move I did get mine to move maybe 10* I my case that was all I needed so my knees were not against the cabinet!

Well, my 14 year old one came out not to bad once I broke it free to spin. The 4 point spanner I made I'm sure helped.

Your camper is a 14 years older I think then my 14 year old one I did (mine is a 2004) ... On yours they may have used "real" joint compound on the pipe nipple thread screwing it into the tank. Some of that older stuff can harden and setup pretty good. Joint does not leak, just don't try and get it out...
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Old 06-09-2018, 07:33 PM   #20
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Our decision is to not try to remove the flange. It’s secure where it is. Filling the tank to almost the top of the flange confirms no cracks or leaks. I will order a new seal. One recommended for our toilet model number.

JohnB great thinking making the tool. You sound like my husband.

Can’t tell you how much we appreciate all the great ideas, suggestions and true life experiences you’re shared. I knew I came to the right place, Thanks!!

New floor next on the agenda.
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