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Old 06-20-2013, 01:17 PM   #1
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Water Pressure Regulator - Should I have 2?

So I currently own this: Valterra Water Pressure Regulator and I have it attached on the exterior. It is the first thing that the hose hooks up to as water enters the system.

I am currently redoing my entire plumbing system and I was wondering if I should still replace the Watts regulator even tho I have the Valterra regulator on the exterior? Any thoughts?



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Old 06-20-2013, 02:35 PM   #2
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When I redid my Trade Wind with pex, I did not replace the inside regulator (I did not have one). I use the external type that has a pressure gauge on it and have never had any trouble. I would think one or the other but not both. I thought about putting one inside but figured that it might be a source of trouble later on where if the external one has an issue it is a quick trip to Wally World to get another one. I used crimp rings on the pex and some places were hard to get to. Sharkbites are nice but very expensive if you use them on all the connections. I did use some in a couple of places where it was impossible to crimp and have had no issues in 3 years.

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Old 06-20-2013, 06:04 PM   #3
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I am with 68 Twind. Use an external regulator. It is what I did on my Argosy. Works just fine. And if it fails, I don't have to tear in to the plumbing to replace it.
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Old 06-21-2013, 12:33 PM   #4
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68 TWind - Great to hear. I am in the middle of replumbing with PEX and the Clamps. The tool was cheaper and it seemed super easy. Which, it is. I am plan to have the external Valterra Regulator and then just past that on the inside, I will have a Check Valve and Relief Valve. DId you add any other check valves in the system? ie. after the water pump, etc?

TG Twinkie - Good point about not having to tear it all out again. I never thought of that but it makes sense.
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Old 06-21-2013, 02:29 PM   #5
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crabbey1 - I just finished replumbing with PEX and added a new waterheater. I have a check valve at the city water inlet and also use an external pressure reg. I figure that both of these are much easier to replace while on a trip rather than on the inside. The new pump I installed also has a check valve. FLOJET PUMP-VSD SENSOR-3.7 GPM.

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