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Old 11-28-2014, 11:03 AM   #29
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Quote:
Originally Posted by Fred1609 View Post
This unit, which I started with, regulates flow.....but not water pressure.....



As extra insurance we also turn the water off at the tap when we leave the rig.
This says it regulates pressure!

Amazon.com: Valterra (A01-1122VP) Lead-Free Water Regulator: Automotive
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Old 11-28-2014, 01:28 PM   #30
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Quote:
Originally Posted by MSHappyCampers View Post

This is the issue that some people have already alluded to ...

It regulates pressure during use by regulating the flow (constriction). However, when all faucets are turned off the static pressure will rise.
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Old 11-28-2014, 05:02 PM   #31
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Water Regulator

Quote:
Originally Posted by bruceisla View Post
This is the issue that some people have already alluded to ...

It regulates pressure during use by regulating the flow (constriction). However, when all faucets are turned off the static pressure will rise.

True. And I have seen static pressure in some parks at 80 to 110 psi, and plumbing in some older coaches and older hoses that leaked.
A true spring and valve water regulator is the ticket. Valterra or Watts perform equally well.
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Old 11-28-2014, 08:24 PM   #32
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Brucieslae is correct without a true regulator when all faucets are turned off in the coach the pressure will be the same on both sides of the cheap brass units.
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Old 11-29-2014, 09:07 AM   #33
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I recently discovered that Teflon tape alone will leak about 20% of the time, but Teflon tape and pipe dope together works nearly 100% of the time (tape first). Sort of a belt and suspenders approach.

The main reason for a Valterra or Watts PRV is that it will pass a greater flow of water than the cheap in-line ones, and they are adjustable, although most folks won't tell the difference between 40 and 50 psi. And a 3/4" Watts will pass so much water, you will see virtually no change in pressure on the downstream side of the PRV.

I see absolutely no value in a device that restricts flow but not pressure. All that would require is placing a small orifice in the inlet, the same thing you would get of you simply turned off the faucet to almost no flow. The whole idea of a regulator is to keep from blowing up your RV plumbing with too much pressure. So if even a fancy PRV can leak past the spring loaded regulator, you will pressurize your rig to city pressure when there is no flow. That is another reason to have a gauge on the downstream side of the PRV.


And some of the "cheap brass units" are spring loaded PRV's, the problem is that they are too small to pass and volume of water and of course they are not adjustable. You may see 45 psi with the faucets or shower off, but start using water and it could plummet to 15 psi. I know, I had one, and still do in a drawer some where.
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Old 11-29-2014, 01:16 PM   #34
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I have thrown away my tape and use the ole pipe dope 100%.
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Old 11-29-2014, 02:33 PM   #35
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I have thrown away my tape and use the ole pipe dope 100%.
Yup, me too. ... unless it's plastic, I use dope. And I really only use tape on plastic as a lubricant.
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Old 11-29-2014, 04:49 PM   #36
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Water Regulator

Never had a problem with tape for water or air or gas etc connections of any type, except compression or flare fittings.
Pretty much do it like this:
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Old 11-29-2014, 05:24 PM   #37
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Tape should be used anytime plastic is involved but make sure enough is used.

Only use dope on the air system as the threads are ones that I cut and sometimes not cleanest so tape just does not work well and difficult to strip back many parts to retape it.

A slathering of dope and good to go.
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Old 12-02-2014, 08:26 AM   #38
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I sent an e-mail to Valterra about the pressure regulators. Below is the reply I received.


Hi Joe,

RV water pressure regulators limit the static pressure (non-flowing pressure), not the dynamic pressure (flowing pressure). Sometimes there is confusion between RV pressure regulators and drip irrigations pressure regulators.

Belinda Garcia
Customer Service
Valterra Products, LLC
15230 San Fernando Mission Blvd., #107
Mission Hills, CA 91345
Ph. 818.898.1671 Fax. 818.361.5389 C-TPAT Certified
Belinda@Valterra.com
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Old 12-04-2014, 02:56 PM   #39
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Water Regulator

Quote:
Originally Posted by MSHappyCampers View Post
I sent an e-mail to Valterra about the pressure regulators. Below is the reply I received.


Hi Joe,

RV water pressure regulators limit the static pressure (non-flowing pressure), not the dynamic pressure (flowing pressure). Sometimes there is confusion between RV pressure regulators and drip irrigations pressure regulators.

Belinda Garcia
Customer Service
Valterra Products, LLC
15230 San Fernando Mission Blvd., #107
Mission Hills, CA 91345
Ph. 818.898.1671 Fax. 818.361.5389 C-TPAT Certified
Belinda@Valterra.com

Hi Joe!
I'm in Yuma and saw several pre-set Valterra pressure regulators. If they are not adjustable they do have a spring/valve in them that should regulate pressure just fine. However, they all have a restrictor that diminishes flow volume below acceptable levels for many folks by passing all water thru a inch hole that is about 1/4 inch.
The adjustable models by Valterra and Watts do not restrict flow volume and allow pressure adjustment.
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Old 12-04-2014, 03:10 PM   #40
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Quote:
Originally Posted by bruceisla View Post
The type you referenced controls pressure by also reducing flow. The Watts type controls pressure without reducing flow.
Reducing the flow only lowers the pressure when the water is running, otherwise the pressure is the same on both sides of the unit.
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Old 12-04-2014, 07:06 PM   #41
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Originally Posted by Clifftall View Post
I bought mine there as well. Different one ( see photo in post #7)
Cliff which unit do you have?
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Old 12-04-2014, 07:11 PM   #42
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It's a watts 263a.
https://www.rvwaterfilterstore.com/P...Regulators.htm
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