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Old 05-05-2021, 10:49 AM   #1
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RV toilet - water line - reinforced hose - right fitting?

I just want to double check
I have a white reinforced hose that feeds water to the toilet in RV
Its not PEX but hose.
I want to install a valve
I bought a typical white plastic plumbing valve fitting with the compression nuts
But on second thought, that is for PEX
I assume I should use a barbed valve fitting for hose

Does anyone know what is correct?
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Old 05-05-2021, 06:39 PM   #2
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Probably, but hard to be sure without seeing what you have. Or getting accurate inside and outside measurements. Different manufacturers use different kinds of hoses, and different toilets could have different size inlet fittings. You didn't mention either the RV make or the toilet brand.



Can you just take the hose to a hardware or plumbing supply store and match it up?
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Old 05-05-2021, 07:43 PM   #3
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Any 1/2" plumbing line that is flexible will work. You can even buy tubing for under a house sink and cut the ends off and use slip fit fittings.

I replaced mine with clear vinyl tubing and hose clamps from Home Depot.
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Old 05-05-2021, 08:00 PM   #4
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If I understand you want to add a valve to what might be pex to fip threads convertor on pex.. like on common compression fittings that mate with under sink faucet hoses. Will this work or find near same in right size.
https://www.amazon.com/dp/B085TLX76N...ing=UTF8&psc=1
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Old 05-05-2021, 08:07 PM   #5
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I think this is what you are looking to do. I wouldn’t trust hose clamps as some campgrounds have some pretty high pressures.
That flexible hose went straight to the toilet.
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Old 05-05-2021, 08:23 PM   #6
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Quote:
Originally Posted by Hittntheroad View Post
I think this is what you are looking to do. I wouldn’t trust hose clamps as some campgrounds have some pretty high pressures.
That flexible hose went straight to the toilet.

Using a pressure regulator will lessen the possibility of a clamp/hose failure.


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Old 05-05-2021, 08:36 PM   #7
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Quote:
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Using a pressure regulator will lessen the possibility of a clamp/hose failure.


Tim
Yep. “Lessen” being the key word! I use all pex fittings or threaded as in my pic. I doubt you will see hose clamps on any factory water lines with pressure.
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Old 05-06-2021, 09:11 AM   #8
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Sorry
I should have been more clear
The toilet is a Thetford Aqua-magic Style-plus
Water is fed to the toilet via a ½” reinforced hose not pex
The actual fitting into the toilet is a 1/2”thread x ½” barb into the reinforced ½” hose
I hadn’t thought of using a PVC valve as Hittntheroad suggested. That will work.
My thought was to cut the ½” reinforced line and insert a plastic valve into the hose run
I initially bought a ½” white PEX valve at home depot but then on second thought, I realized that type of fitting was for PEX even though it is barbed. So I found a fitting made for barb’d hose.
It is good feedback about not using a worm gear clamp vs a Oetiker crimp cinch clamp
My question was to verify from experts that the ½” white PEX valve at home depot would not work in a ½” reinforced hose. Just looking at the ½” white PEX valve … you would think that it would work
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Old 05-06-2021, 07:59 PM   #9
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Old 05-07-2021, 03:09 PM   #10
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I did exactly what you are doing Mine was in a Tiffin Phaeton the 1/2" peck will not work because the hose diameter is larger than the locking screws diameter. So I went to home depot and got a 1/2" brass valve threaded female ends then screwed to 1/2"pipe to hose barbed and two hose clamps on each side. Hole set up was about 2" in length. Now when I need to work on the toilet I don't have to shut off the water to the rig, happy wife. Sorry cant send pictures now as our rig through a rocker arm and is in for repairs. Another story.
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