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Old 09-28-2020, 07:32 PM   #1
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Water pressure regulator in 2021 Cornerstone

Does anybody have a suggestion regarding the best place where to install a water pressure regulator in the 2021 Cornerstone 45B? The space I see is very tight. Anyone? Thanks
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Old 09-28-2020, 07:58 PM   #2
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I have a 2017. I jammed a pressure regulator in where my hose feeds from the power reel through a hole in the wet bay and connects to the coach water inlet. I don’t put my regulator on the faucet side of the hose. I have had no issues with the hose not handling pressure. I can read the gauge and adjust it as needed but it is a little in the way of the wet bay access panel. I don’t remove that panel often.

Hal and Pam
2017 Entegra Cornerstone - B
2020 Ford Edge ST
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Old 09-29-2020, 06:05 AM   #3
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I have always mounted mine at the CG faucet to also protect the hose. But on the 21 I am going to plumb it behind the wall in the wet bay where the water connection is. I am also going to plumb a back flush manifold using pex pipe and will install the regulator then, but FL is going to have to cool off before that project is tackled.

My current regulator did not last long constantly banging it around and connecting it at every stop.
Chuck in SW FL
Digital 2021 Cornerstone "B"
A "Digital" 2019 Cornerstone "B" Traded
A "Classic" 2014 Anthem 42 RBQ---Sold
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Old 09-29-2020, 05:28 PM   #4
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I use a smaller version of a household water pressure regulator. Specifically, a Zurn Wilkins NR3XL:


Below are a few photos. As you can see, I have it mounted on a small platform. I leave the two braided hoses in place, with quick connects on the end of each one. When we arrive at an RV space, I run a short hose from the water supply, quick-connect it to the input side of the regulator, slide the regulator under the coach beneath the wet bay, and quick-connect the output side of the regulator to the coach.

I have the regulator set to allow 65 to 75 PSI into the coach plumbing.
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Larry & Amy Beckner
Scottsdale, AZ
2018 Entegra Cornerstone 45B
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water, water pressure

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