Mystery in the black tank - Escape Trailer Owners Community

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Old 09-24-2017, 12:45 AM   #1
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Mystery in the black tank

First off, sorry for the topic.

Today I was dumping our black tank and I happened to look down with a flashlight. There was a blob of yellowish-white stuff directly under the toilet bowl drain at the bottom of the black tank. This was surprising to me since both my wife and I know that NOTHING other than poo, pee, water, and RV toilet paper go into the black tank.

I poked a stick into it and it has the consistency of hard chewing gum, and it's stuck down on the bottom like old chewing gum. There’s way too much of it to be actual chewing gum though. I'm not sure, but it looks to me like some sort of caulking or Dicor sealant like material.

After we took our trailer home I looked down into our tank and I'm pretty sure that it wasn't there at time of purchase, but I'm not 100% sure.

My best guess is that it's some sort sealant that somehow came loose. If that’s the case then presumably some sealant is missing somewhere else inside the tank, which doesn’t give me comfort. We've let maybe 4-5 other people use our toilet, but only once or twice each, so it's not 100% impossible that someone left something down there, but it doesn’t look like anything someone would normally put into a toilet. We were able to take a small part of it out.

Any other theories? Does anyone else have this kind of stuff at the bottom of their black tank? Is it supposed to be there? Here are some photos.
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File Type: jpg IMG_20170923_1030379.jpg (81.9 KB, 45 views)
File Type: jpg IMG_20170923_2159380.jpg (95.2 KB, 45 views)
File Type: jpg IMG_20170923_2200000.jpg (82.4 KB, 45 views)
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Old 09-24-2017, 02:12 AM   #2
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I have no good guess other than someone put something strange in the toilet or it was there from the start. I really can't see how it could be sealant of any kind as nothing like that, let alone that amount, is used to mount the toilet. The system really is simple the toilet mounted with (I believe) a gasket directly to the tank, with outlet plumbing using cement to glue to the one piece tank.

I would bet if you can clear it out, all is just fine and no need to worry.
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Old 09-24-2017, 05:15 AM   #3
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Looks a lot like plumbers putty but I've never had a use for it in a toilet install and my trailers sink drain is sealed with silicone.

I might try and clear the bulk of it out if it'll free up with a flat stick, would not want it to jam the valve from closing one day. Better to clear it when you have clean tanks to mess around with.
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Old 09-24-2017, 05:43 AM   #4
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Monster from the black lagoon?

Hi: paulk... Could be some excess putty that finally squeezed out of where ever it was applied. Could be some DNA material from the afore mentioned Monster but I doubt it!!! Either way its not something you want to get stuck in the gate valve. Alf
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Old 09-24-2017, 09:35 AM   #5
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I have similar gunk in my new 21. One instance may be an anomaly. Two makes me suspect a build process problem.
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Old 09-24-2017, 12:06 PM   #6
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I have similar gunk in my new 21. One instance may be an anomaly. Two makes me suspect a build process problem.
Was it there when you picked it up, or did it appear later?
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Old 09-24-2017, 12:31 PM   #7
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This is what I see down my toilet.....
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Old 09-24-2017, 12:31 PM   #8
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in case you want more https://smile.amazon.com/s/ref=nb_sb...let+seat+cover
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Old 09-24-2017, 01:06 PM   #9
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Originally Posted by paulk View Post
Any other theories? Does anyone else have this kind of stuff at the bottom of their black tank? Is it supposed to be there? Here are some photos.
I was just looking at some photos I took of the water system and saw similar looking goop around the propane supply line to the hot water tank.

Screenshot_20170924-135837.jpg
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Old 09-24-2017, 01:34 PM   #10
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Paulk,
As a recently retired research scientist, I must ask you when was the last time you were abducted?
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