High Water Pressure

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Old 05-21-20, 04:29 PM
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High Water Pressure

For years, I've had to replace hoses, hose carts, nozzles, sprinklers etc earlier than I would expect due to the high pressure at my front of house outdoor hose bib. This faucet is at line pressure before the PRV which I have set at 50psi. Is it normal for pressure from municipal systems, in this case the county, to be as high as 170psi from street?

Second question: I water my lawn from this bib and run 2 sprinklers at a time. Would it be better for me to use a 3/4 inch hose vs. the current 5/8 inch hose to try to lower the pressure per hose?

My rear bib is at 50psi and I have no problems with any of my stuff failing back there.
 
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Old 05-21-20, 06:05 PM
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Most plumbing items are rated for up to 80psi. That includes standard hoses, sprinklers, etc. It's great that you're enjoying all that extra high pressure, but it's obviously damaging the seals and structure of the hoses.

I would probably consider adding a PRV and setting it higher than 50psi, but lower than 100. At 170psi, I'm surprised the faucet hasn't failed yet too.
 
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Old 05-21-20, 08:55 PM
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The branch line for the front faucet does not have enough space for a PRV before disappearing into the wall on its way to the bib. The branch to the house has a PRV which I had to replace a few years ago. I had full pressure to the house for an unknown time before I discovered the failure.

They don't make a PRV that attaches to the bib before the hose do they?

Thanks for the reply.
 
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Old 05-21-20, 09:12 PM
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I just found a PRV made for Rec vehicles that should do the job. It screws into the hose bib and has a gauge to adjust the pressure to whatever I want. I'll set it on 80 like you suggest and give it a go.

Another question: I need to replace the vacuum breaker on this bib. Should I mount the new one on the end of this new PRV before the hose?

Thanks!
 
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Old 05-21-20, 09:18 PM
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Is it normal for pressure from municipal systems, in this case the county, to be as high as 170psi from street?
I've never seen home water pressure that high.
Have you discussed this extreme pressure with your county supplier ?

I have not seen any PRV's that screw directly onto a hose bib.
 
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Old 05-22-20, 06:43 AM
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Yes, I talked to them yrs ago, they came out and checked it themselves. They were quite proud of the high pressure. I found a PRV with a gauge at an RV supplier that looks like it will do the job. Since I run 2 sprinklers, I'm going to try 80psi.
 
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Old 05-31-20, 11:57 AM
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I got my RV PRV in the mail yesterday. Its a good looking piece with a really nice oil filled gauge. So, went to remove the old leaky vacuum breaker, drilled out the set screw and took it off. Well, in the process of drilling it, looks like I ruined the faucet. It leaks like a sieve now. No problem, I'll replace the bib also, they're not expensive.

Got the siding and the trim pieces off around the bib and I see its sticking out a hole in the OSB and sweated on to the pipe.

What's the best course of action to replace it?
 
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