Water leak in Casita SD - Page 2 - Fiberglass RV
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Old 02-03-2021, 01:30 PM   #21
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Name: Debra
Trailer: Casita 2019
FL
Posts: 84
Water leak in Casita SD

Hi Gordon2. Thanks for explanation. I think it already had a sharkbite fitting on it and he was replacing it. I will check that out next time I talk to him. I will try to upload the pick. I have not done that before on this site.
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Old 02-03-2021, 01:32 PM   #22
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Name: Debra
Trailer: Casita 2019
FL
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Robert, thanks for sharing about the vent cover. That is something to keep an eye on. My issue seems solved for now as well.
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Old 02-03-2021, 02:43 PM   #23
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Name: Gordon
Trailer: 2015 Scamp (16 Std Layout 4) with '15 Toyota Sienna LE Tug
North Carolina
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Quote:
Originally Posted by Debbie in Florida View Post
Hi Gordon2. Thanks for explanation. I think it already had a sharkbite fitting on it and he was replacing it. I will check that out next time I talk to him. I will try to upload the pick. I have not done that before on this site.
I would bet the farm that when it came from the factory the red pipe had the same Tee fitting and crimp rings as the blue one does now (unless its a mod for something added to the hot line). The PEX fitting on the blue pipe is one of the most reliable types of plumbing fittings in the world - generally if it does not leak right after its installed it wont for a decade or two or longer*. I cannot say that for the one now on the red pipe which is the push on type that I am leery of. Looks like there was enough room for the crimping tool so I wonder why he did not use a crimper and ring just like the blue pipe. Keep an eye on it when the plumbing is under pressure.
--
* I did recently have a nineteen year-old PEX crimp fitting fail on the well supply line at my house - 18 inches underground. But the house had aggressive water for all those years, and full time of course unlike a camper. The fitting actually got eaten away by the bad water and broke. But the copper crimp ring and pipe were fine. $700 bill (we ran all new line to the well to be safe).
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Old 02-03-2021, 03:11 PM   #24
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Name: Greg
Trailer: 2008 Casita 17 SD
Washington
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Originally Posted by gordon2 View Post
I would bet the farm that when it came from the factory the red pipe had the same Tee fitting and crimp rings as the blue one does now (unless its a mod for something added to the hot line). The PEX fitting on the blue pipe is one of the most reliable types of plumbing fittings in the world - generally if it does not leak right after its installed it wont for a decade or two or longer*. I cannot say that for the one now on the red pipe which is the push on type that I am leery of. Looks like there was enough room for the crimping tool so I wonder why he did not use a crimper and ring just like the blue pipe. Keep an eye on it when the plumbing is under pressure.
--
* I did recently have a nineteen year-old PEX crimp fitting fail on the well supply line at my house - 18 inches underground. But the house had aggressive water for all those years, and full time of course unlike a camper. The fitting actually got eaten away by the bad water and broke. But the copper crimp ring and pipe were fine. $700 bill (we ran all new line to the well to be safe).
If you look at her picture closely you'll see the standard crimp style PEX fittings on the hose running along the floor in the background. I only see a Sharkbite fitting going up to the outside shower hot water hose that was probably installed later. Could have been a replacement for whatever reason. I can only assume that the original owner did it. I have never been a fan of Sharkbite style fittings either. I have never trusted them and I still don't.

Here's a pic of my factory installed outside shower hook-up, where they used crimp style fittings on that as well.

And it was mentioned in a post above recommending the use of those screw-type hose clamps. Please do not use screw-type clamps. They will strip their threads before you could ever get them tight enough. PEX hose, despite being plastic, is very stiff, and I would guarantee that if used, those screw clamps won't get a good seal. They can't compress the PEX hose enough.
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Old 02-03-2021, 05:17 PM   #25
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Name: Sgmhgg
Trailer: Casita
Texas
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I had the same issue with my 2019 17'SD. If you have an outside shower, look under the dinette seat next to the toilet wall. There you will find 2 plastic nuts on the hot and cold water lines. Mine were loose enough to leak and water ran under the dinette table. Another leak was under the bed on the water heater side. The water pump has a traditional hose clamp on the fresh water side. It also was loose enough to leak. These issues happened after we camped 1 time. I'm thinking things just needed to settle in.
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Old 02-03-2021, 06:13 PM   #26
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Name: TD
Trailer: Casita and Chalet
California
Posts: 9
It sounds like you found your leak source. Congrats. I had a leak that caused the carpet in the rear of my 16' Casita SD, rear dinette area, to get soaked. We ended up tearing the whole backend of trailer up searching for the leak. We finally discovered the water was coming in the rear brake light fixture and leaking inside, down the wall and pooling near the table. No wet walls at all. I write this to let you know if the tiny little gaskets on any of your lenses on your lights rots or falls out, it could allow water inside. We pulled the red lens cover off and could see water had pooled up, then drained into the trailer. Who knew?? Keep it in mind for the future. Maybe it will save you some time and a mess in the future.
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Old 02-05-2021, 09:31 AM   #27
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Name: Phil
Trailer: Casita
New Mexico
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Water filter

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Originally Posted by Debbie in Florida View Post
Thank you all. I realize how ignorant I am! I have an RV repair guy coming tomorrow and with these ideas, I hope he can fix yhe problem and I get a basic lesson in Casita plumbing.

Reading in the A-z owners guide, she suggested that a water leak on the rear interior floor is due to the water line hose filter located inside the Casita...at least for that leak.

Any other ideas are welcome. I will let you know what the RV guys suggests and will share your ideas with him. Thanks again.
My recent leak was exactly as suggested...the water filter under the rear table burst. It's behind the wooden baseboard panel at the inside rear, under the table.
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