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Olddawgsrule
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Topic: Plumbing air pressure test? Posted: 08 Nov 2017 at 4:45pm |
Okay folks. Who has done this?
Pressurize the system with air and see how long it lasts. Best way to test for leaks without water everywhere.
What is the Pod setup for for pressure? And how long should it hold?
I know the house spec's, but what are the Pod spec's? You know.... Please share.. I'm searching everywhere on the internet and haven't learned..
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mcarter
podders Helping podders - pHp
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Location: Greenbrier, TN
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Posted: 08 Nov 2017 at 5:49pm |
Interesting test. Personally I would not use more than 30-40 lbs. That's sufficient to find a leak and not harm any seals. 30 lbs is what most agree is recommended for air pressurization winterization. I have never done this. Recommended water pressure is not far above this.
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Mike Carter
2015 178
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jato
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Posted: 08 Nov 2017 at 9:08pm |
I would agree with Mike as far as not using more than 30 - 40 psi, that should be sufficient. For the past 6 years I have used 60 - 80 psi when blowing out my water lines for winterizing, takes less than 1 minute to go through it all AND I always keep at least one line open when doing this.
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mcarter
podders Helping podders - pHp
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Posted: 09 Nov 2017 at 8:42am |
Jato,
Good to know, I may increase mine a bit, slow going at 30 psi. Everything I read said 30, so I have been using that.
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Mike Carter
2015 178
" I had the right to remain silent, I just didn't have the ability."
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JandL
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Location: California
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Posted: 09 Nov 2017 at 10:14am |
Be careful when doing an air pressure test
From Charlotte Pipe, Air Testing of Plumbing Piping Systems, Technical Bulletin #15811
“Air testing – of any piping system – is not a system capability issue; it is
a life-safety issue. A pipe segment withstands air pressure in exactly the
same manner as it withstands hydrostatic pressure; the physics don’t
change.
Water is not compressible and cannot store energy through compression,
so under these scenarios nothing threatening will occur. Air is
compressible and will store energy under compression which will release
explosively, possibly throwing shards of pipe, test plugs, fittings or debris.”
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JandL
2013 Honda Ridgeline
2012 177
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rawest50
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Posted: 09 Nov 2017 at 10:18am |
I think my pressure regulator I use is rated for 50 psi. Is that something I should be concerned about? I have plenty of flow.
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JandL
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Posted: 09 Nov 2017 at 11:18am |
"I think my pressure regulator I use is rated for 50 psi."
Are you talking about your water pressure regulator? My water pressure regulator is also set to 50 PSI. The safety issue is when you use air to pressure something
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JandL
2013 Honda Ridgeline
2012 177
2 Paynes in a Pod
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Olddawgsrule
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Posted: 09 Nov 2017 at 3:49pm |
Thanks folks! Standards are very close to household.
35-45psi is all you require for household, 30psi sounds about right.
If no one had spoken up I was headed for 25psi. Though I still need to get the unit and read the system setting pressure. Typically less that half is sufficient and hold for an hour.
10% loss in that time frame is still fine. As an earlier post stated, there are differences between hydraulic and pneumatic pressures. Our plumbing system is built for hydraulic. So some loss is assumed and it's new, not all seals ave been 'wet' enough for proper sealing.
If pressure drops quickly and goes low fast.. Houston, we got a problem here!
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mcarter
podders Helping podders - pHp
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Location: Greenbrier, TN
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Posted: 09 Nov 2017 at 4:06pm |
I have an adjustable water regulator, think most are preset 45-50, which is ok. Those not adjustable are at 45 I think. I maintain my pancake air compressor as close to 30 when doing winterization. That works. I have never air pressurized with all closed. Currently have no water leaks.
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Mike Carter
2015 178
" I had the right to remain silent, I just didn't have the ability."
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Olddawgsrule
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Posted: 09 Nov 2017 at 4:22pm |
Originally posted by mcarter
I have an adjustable water regulator, think most are preset 45-50, which is ok. Those not adjustable are at 45 I think. I maintain my pancake air compressor as close to 30 when doing winterization. That works. I have never air pressurized with all closed. Currently have no water leaks. |
Thank you! Good info. Raises a question though...
What is the water pressure at most campgrounds?
Input from my house will be well over 45.. You know the tank spec's? Wondering if I should place a regulator on the water inlet. Do plan on a filter there.. Wouldn't be that hard to do..
I realize the tank pump regulates to the onboard plumbing, curious about pressure to the tank and it's rating?
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