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Old 03-27-2003, 05:32 PM   #1
 
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Exclamation Shurflo regulator_50 psi is not 40

I have seen mentioned often that older trailers should have a 40 psi water pressure regulator. That 40 psi is maximum pressure their lines are made to handle safely.

Looking on the web and various RV and Marine catalogs, I see advertised Shurflo pressure regulators as 40 psi.

SMALL DETAIL HERE: Shureflo does not have a 40 psi regulator, it is a 50 psi

I checked the reference number on ours, it reads 50 psi & has the same number as the ones listed as 40 psi on various catalogs. Shurflo website lists same #, for the 50 psi.

The facts that so many outfits are passing 50 for 40, makes me believe that Shurflo is to blame, and I think they are fooling RVers with false advertising.

Is your plumbing safe ????????? Will you sleep soundly tonight, knowing that ?
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Old 03-27-2003, 09:26 PM   #2
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Question Wait a minute.....

I thought propane regulators were ALL set up for 11 w.c.? I know my house is. You are saying that you go from tank pressure down to 50 PSI, then the appliance regulator drops it to 11 w.c.?? I KNOW mine drops to 11 w.c. right after the regulator, because I measured it.
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Old 03-27-2003, 10:07 PM   #3
 
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Quote:
I thought propane regulators were ALL set up for 11 w.c.?
I won't argue on that one...... I should have made it clear that I was talking about water pressure regulator

Sorry for the confusion (I have corrected my first post accordingly, thanks).

My question remains: "Is your plumbing safe ????????? Will you sleep soundly tonight, knowing that ?"

Enough to worry about water without you adding propane problems !!!!!
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Old 03-28-2003, 06:13 AM   #4
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Ooops! Sorry!

I should have gotten keyed in by the name "Sureflo". I don't know what brand mine is, it is a large brass regulator. Never seem to have enough pressure anyway, so I know mine can't be around 50 psi. I should get one of those $13 CW pressure guages that go on the campsite water connection. I have two TEMPORARY fixes in my plumbing with black heater hose splices. One came off last summer, lucky for me I was standing right next to the AS when it happened. Not sure if I want to re-copper it, or go to the new stuff, yet.
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Old 03-28-2003, 10:26 AM   #5
 
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lucky you, relax. Trailers made prior to 1978 have copper lines, and you are safe. Our 1974 is safe, our 1971 has had half of it's lines frozen, so I guess it is beyond any danger now.
I am concerned about our 1990, and owners or trailers made between 1978 & mid 1995 MAYBE should be concerned too.

Since my first post, I have had time to review my notes. What concerns me about this 40/50psi is that the increase pressure our lines are subjected could hasten their demise.

Those who are not familiar with that problem should read the very informative thread by 83Excella Plastic Plumbing

A brief summary: "Gray polybutylene tubing was used in plumbing installed between January 1, 1978 and July 31, 1995. While it may leak within a few years of installation, the majority of leaks start to occur in the 10-15 year time frame." A lawsuit ensued.

It is then very important to keep water pressure low. I don't know if the difference between 40 & 50 psi is great enough to make a significant difference, but I will assume it is until proven otherwise.

Why are RV outfits and Shurflo been lying to us?
Is it because the "book" says "use 40", they don't have a 40, so it is easier to relabel a 50 into 40?

Am I making a big deal out of nothing like usual ?

RV owners were kept out of this lawsuit because of the low pressure used in RVs, compared to much higher psi in houses.
But if they lied to us, I am wandering about their liability when my trailer gets flooded.
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Old 03-28-2003, 10:35 AM   #6
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Not Adjustable?

Mine has an adjustment screw on it. I take it the one you have is not adjustable?

A broken water line could cause thousands of $ damage to an RV as easily as it could to a house. RV owners should be considered in such a lawsuit.
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Old 03-28-2003, 10:54 AM   #7
 
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As far as I know, the one we have has no adjustement. And we thought we were "safely" at 40psi until we took it out and found it was a 50psi.

You may have already what you need, put other may be interested in the following (build your own out of parts from Lowes or HD):
water regulator vs flow restrictor
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