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Old 06-12-2020, 04:49 PM   #1
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Very Strange Toilet Problem

Just ended a trip and toilet worked perfectly with no issues. At departure, I filled and flushed (normal procedure for us) the black tank 3 times till clear. Added some Happy Camper and about 3 or 4 gal. of water and drove home.

Upon arrival, we noticed urine on the floor behind the toilet. It was not there during pack-up. Can anyone give me a clue as to what to check or what could be wrong?

This is very strange AND disconcerting.

Thanks.
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Old 06-12-2020, 05:56 PM   #2
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Either someone “missed” the toilet and you didn’t notice, or the base gasket is faulty and when driving on the way home “it” came out from under the toilet. But one would think it should have been diluted if you rinsed that much.

Clean up and run toilet, maybe paper towels tucked under base to see if they get wet while flushing.
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Old 06-12-2020, 06:05 PM   #3
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Been there, done that. Strange but true. Mine turned out to have a hairline crack on the inner bowl of the toilet (the portion that holds the waste products). Obviously, the only contaminants to leak through something like that are going to be liquid, so the outer cavity (the area between the actual toilet bowl and the exterior of the toilet) filled with any water that was present in the actual toilet bowl.

As a habit, I wouldn't let the kids flush at night so whatever they did was all flushed away in the morning. This gave it an 8 hour time frame for whatever collected during the night hours to permeate into the outer cavity. Once I started driving down the road with an empty toilet bowl, what had collected in the outer began to slosh around and splash out the back. Presto! Urine tainted water behind the toilet even when the toilet bowl was empty.

I got a new toilet under warranty (another plastic one even though I offered to pay the difference for a porcelain one). I hope this helps.

EDIT: I started by changing out the gasket the toilet sat on to no avail. It turns out that a gasket wasn't going to fix the problem I eventually discovered.
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Old 06-12-2020, 06:57 PM   #4
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That sounds exactly what I experienced. Still under 1-year warranty. That and a different minor issue screams service visit. Thanks for the detailed info.
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Been there, done that. Strange but true. Mine turned out to have a hairline crack on the inner bowl of the toilet (the portion that holds the waste products). Obviously, the only contaminants to leak through something like that are going to be liquid, so the outer cavity (the area between the actual toilet bowl and the exterior of the toilet) filled with any water that was present in the actual toilet bowl.

As a habit, I wouldn't let the kids flush at night so whatever they did was all flushed away in the morning. This gave it an 8 hour time frame for whatever collected during the night hours to permeate into the outer cavity. Once I started driving down the road with an empty toilet bowl, what had collected in the outer began to slosh around and splash out the back. Presto! Urine tainted water behind the toilet even when the toilet bowl was empty.

I got a new toilet under warranty (another plastic one even though I offered to pay the difference for a porcelain one). I hope this helps.

EDIT: I started by changing out the gasket the toilet sat on to no avail. It turns out that a gasket wasn't going to fix the problem I eventually discovered.
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Old 06-12-2020, 06:58 PM   #5
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Good suggestions. Thanks.
Quote:
Originally Posted by Brad Wilf View Post
Either someone “missed” the toilet and you didn’t notice, or the base gasket is faulty and when driving on the way home “it” came out from under the toilet. But one would think it should have been diluted if you rinsed that much.

Clean up and run toilet, maybe paper towels tucked under base to see if they get wet while flushing.
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Old 06-13-2020, 06:21 AM   #6
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[QUOTE=Brenwol1;5301678]Just ended a trip and toilet worked perfectly with no issues. At departure, I filled and flushed (normal procedure for us) the black tank 3 times till clear. Added some Happy Camper and about 3 or 4 gal. of water and drove home.

Upon arrival, we noticed urine on the floor behind the toilet. It was not there during pack-up. Can anyone give me a clue as to what to check or what could be wrong?

This is very strange AND disconcerting.

Thanks.[/QUOTE

Never experienced a toilet leak like that, but then boys will be boys and wildly wayward target practice is a normal sporting occurrence. Paint a bullseye around the drop zone. If it was pure urine then in my opinion somebody missed a shot and you missed a puddle, if it is simply toilet water then you have a cracked or leaking toilet. Or perish the thought, perhaps the dreaded traveling peeing phantom has struck again. Wait till they raid your refrigerator on the way home and drink your last beer or move things around inside the rig!
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Old 06-13-2020, 09:46 AM   #7
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[QUOTE=Reevesfamily;5302140]
Quote:
Originally Posted by Brenwol1 View Post
Just ended a trip and toilet worked perfectly with no issues. At departure, I filled and flushed (normal procedure for us) the black tank 3 times till clear. Added some Happy Camper and about 3 or 4 gal. of water and drove home.

Upon arrival, we noticed urine on the floor behind the toilet. It was not there during pack-up. Can anyone give me a clue as to what to check or what could be wrong?

This is very strange AND disconcerting.

Thanks.[/QUOTE

Never experienced a toilet leak like that, but then boys will be boys and wildly wayward target practice is a normal sporting occurrence. Paint a bullseye around the drop zone. If it was pure urine then in my opinion somebody missed a shot and you missed a puddle, if it is simply toilet water then you have a cracked or leaking toilet. Or perish the thought, perhaps the dreaded traveling peeing phantom has struck again. Wait till they raid your refrigerator on the way home and drink your last beer or move things around inside the rig!
LOL, reminds me years back, gave my boy a Cheerio for target practice.
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Old 06-13-2020, 10:03 AM   #8
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[QUOTE=Brad Wilf;5302438]
Quote:
Originally Posted by Reevesfamily View Post

LOL, reminds me years back, gave my boy a Cheerio for target practice.
YUP INDEED...Also used a Cheerio....Told the boys to keep it in the hole!
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Old 06-14-2020, 05:16 AM   #9
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If it takes 3 fill and flush cycles to run clear you have bigger problems than a little pee.
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Old 06-14-2020, 02:53 PM   #10
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Quote:
Originally Posted by Brenwol1 View Post
Just ended a trip and toilet worked perfectly with no issues. At departure, I filled and flushed (normal procedure for us) the black tank 3 times till clear.
The people in line behind you at the dump station must have been impressed with the thoroughness of that procedure...
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Old 09-20-2020, 07:23 AM   #11
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I do that only at a site that has a sewer connection or there is no one waiting at the dump station and there are open stations. Please don't assume someone is inconsiderate before you know all the facts.
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Old 09-20-2020, 07:31 AM   #12
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SOLUTION: I contacted my dealer and described the problem. The first thing he asked was if it was a Dometic toilet and asked the model. When I verified it was a Dometic, he said they have had MANY problems with the cheaper plastic Dometics.

Seems a crack is common on the inner section and leaks a little fluid in between the inner and outer plastic sections. During travel, the bouncing causes this fluid to leak out from underneath the outer casing. EXACTLY what we experienced.

Even though we were a couple of months past warranty, the dealer went to bat for us and got a replacement covered under warranty from Dometic. Problem was, that they would only replace with the same part. They offered to replace with a porcelain toilet by Thetford for just the cost of the difference in the warrantied (word?) item and the new one.

New one is MUCH MUCH MUCH better.
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Old 09-20-2020, 07:57 AM   #13
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Quote:
Originally Posted by Brenwol1 View Post
SOLUTION: I contacted my dealer and described the problem. The first thing he asked was if it was a Dometic toilet and asked the model. When I verified it was a Dometic, he said they have had MANY problems with the cheaper plastic Dometics.

Seems a crack is common on the inner section and leaks a little fluid in between the inner and outer plastic sections. During travel, the bouncing causes this fluid to leak out from underneath the outer casing. EXACTLY what we experienced.
I was about to ask the same question, is it a Dometic Model 300? Had the same problem. Mine was out of warranty, but I was able to find a Model 310 (porcelain) online for a good price. Physical replacement took about 20 minutes, very easy. End of problem.


Glad you're on the way to getting it solved!


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Old 09-20-2020, 11:18 AM   #14
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Since posting on this thread (June 12th, post #3), my replacement Dometic 300 that was manufactured June 28, 2019 is doing the same thing as the one it replaced. I called Dometic to start a warranty complaint. They told me that they have a 2 year warranty. I am awaiting their decision but also made it clear I did not want a third model 300 and was willing to pay the difference for a model 310. We'll see what happens.
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