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02-08-2021, 07:52 PM
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#1
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Winnebago Owner
Join Date: Jul 2019
Posts: 57
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What is MAX water PSI?
I have looked EVERYWHERE and can’t find the answer in my books. I have a 2018 Winnebago micro mini 21’ and need to know the MAX PSI for water coming into the camper. Is it 30 or 40 psi? Thank you! 🥰
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02-08-2021, 08:20 PM
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#2
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Winnebago Owner
Join Date: Oct 2019
Posts: 103
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I cant find anything either, but for some reason 40 psi sticks out in my mind. Either way, I always use a pressure regulator and it is rated at 40psi. Are you wanting to not use a regulator or have a special situation?
I cant find anything on Winnebago's website either.
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2021 Elkridge 37BAR
2020 F450
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02-08-2021, 08:22 PM
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#3
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Winnebago Master
Join Date: Nov 2018
Location: Pflugerville/Austin, Tx
Posts: 7,530
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Checked the book?
__________________
Richard
Why no RV year, make and floorplan on MY signature as we suggest for others?
I currently DO NOT have one! 
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02-08-2021, 08:24 PM
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#4
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Winnebago Owner
Join Date: Jul 2019
Posts: 57
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I’m looking at purchasing a water regulator and wanted to get the right one. I know some are maxed at 30 and some are 40. Just didn’t want to chance it.
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02-08-2021, 08:25 PM
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#5
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Winnebago Owner
Join Date: Jul 2019
Posts: 57
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Quote:
Originally Posted by Morich
Checked the book?
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Yes, I checked the book but I know my rig is not 60 psi, more like 30.
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02-08-2021, 08:31 PM
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#6
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Winnebago Owner
Join Date: Oct 2019
Posts: 103
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Looks like Morich is correct according to the online manual.
here is the link to downloadable owners manuals.
https://www.winnebago.com/owners/own...r-manuals/2018
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2021 Elkridge 37BAR
2020 F450
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02-08-2021, 11:18 PM
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#7
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Site Team
Join Date: Sep 2009
Location: Spring Branch, TX
Posts: 7,833
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Yes, 60 psi is considered the max safe water pressure for most RVs of any brand.
I use an adjustable regulator with a pressure gauge and keep it set at 60.
https://www.amazon.com/gp/product/B07198GQPV
We’re still at a large park in Tucson right now and we see pressures from 30 to 40 psi max. Ugh.
__________________
2017 Winnebago Adventurer 37F
2016 Lincoln MKX Toad
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02-08-2021, 11:29 PM
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#8
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Proud “No Intent” Owner
Join Date: Jul 2019
Location: Belmont, CA
Posts: 1,774
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My Intent manual says 50 max. I blew a pex line connection at 60. I’d check the manual specific to your unit, and stay 5# below that.
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02-09-2021, 07:00 AM
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#9
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Winnebago Owner
Join Date: Jul 2019
Posts: 57
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I agree! I think I will get a pressure regulator with a gauge and set it to 40. Thank you
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02-09-2021, 08:40 AM
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#10
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Winnebago Master
Join Date: Dec 2003
Location: Motor City, Mich
Posts: 1,004
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My '04 Adventurer, and many other Winnebagos, uses Flair-It brand fittings. Their pressure rating is:
All Flair-It fittings are NSF listed and designed for hot and cold water applications with pressure ratings that will exceed 160 psi @ 73.4°F and 80 psi @ 200°F.
(From a Flair-It catalog)
Current Winnebagos use brass fittings and crimps, right? They'd be rated even higher I hope.
No way a fitting should have come apart at 60 psi. Water heater pressure relief is like 150 psi. Wouldn't be needed if the fittings blew aprt on the back of it at 60 psi.
__________________
Tim.
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02-09-2021, 09:19 AM
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#11
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Winnebago Master
Join Date: Nov 2018
Location: Pflugerville/Austin, Tx
Posts: 7,530
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Quote:
Originally Posted by Celtic74
Yes, I checked the book but I know my rig is not 60 psi, more like 30.
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Yes, we all have different levels of what we call "safe" but that was not what you asked!
You asked what the max pressure for your trailer might be, not what you feel is safe!
If you have some reason to think your plumbing is defective, that would be something I would want to fix. But I also keep in mind that the cheapest clear plastic tubing from the big box is rated for 45 PSI and what we get in RV is much better than that.
I use a reg that limits the pressure to 45PSI as it is cheap and easy to find but I also don't use it in lots of places when I am sure the pressure is not extreme because it does change the shower too much!
When near mountains where the water storage may be high and I am down in the valley, I use it due to the odds of high pressure.
__________________
Richard
Why no RV year, make and floorplan on MY signature as we suggest for others?
I currently DO NOT have one!
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02-09-2021, 12:02 PM
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#12
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Proud “No Intent” Owner
Join Date: Jul 2019
Location: Belmont, CA
Posts: 1,774
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Quote:
Originally Posted by tderonne
My '04 Adventurer, and many other Winnebagos, uses Flair-It brand fittings. Their pressure rating is:
All Flair-It fittings are NSF listed and designed for hot and cold water applications with pressure ratings that will exceed 160 psi @ 73.4°F and 80 psi @ 200°F.
(From a Flair-It catalog)
Current Winnebagos use brass fittings and crimps, right? They'd be rated even higher I hope.
No way a fitting should have come apart at 60 psi. Water heater pressure relief is like 150 psi. Wouldn't be needed if the fittings blew aprt on the back of it at 60 psi.
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Of course, that assumes that Winnebago put the hose all of the way over the barbed fitting before they crimped it, which I’m guessing they did not. I agree, it shouldn’t have blown off the connection, if it were installed correctly.
And with that said, I now wonder what other fitting might they not have connected properly, that could be the next one to blow off at 60#? In the shower wall? Probably, whatever would do the most damage.
So,I just keep the pressure lower than specs. Hey, my brick and mortar house has only 35 PSI, so I’m livin large when away... 
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