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Old 08-14-2015, 07:32 PM   #1
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Water line pressure

I own a 2011 Voltage 3200 and was wondering if anyone knew what the water line (plumbing) pressure might be rated at? I did a search but did not find anything so I called Dutchman (Keystone) and they were no help.
Thanks,
Chris
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Old 08-14-2015, 07:41 PM   #2
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I believe Dutchmen/Keystone is still using Pex Pipe for the water lines.

Your stock water pump is rated at 40 PSI

The Pex Pipe max would be around:
"Uponor PEX carries the following hydrostatic temperature and pressure ratings: 200F at 80 psi. 180F at 100 psi. 120F at 130 psi (1/2" Wirsbo AQUAPEX tubing only)"

I personally would not exceed 50 PSI, the plumbing routes in these things would be a pain in the rear to trace for leaks and/or replace broken pipes.
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Old 08-14-2015, 09:47 PM   #3
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I have an adjustable pressure gauge and generally run mine between 55-65 PSI without any issue on our Cyclone or the Voltage. I have however witness neighbors Raptor line blow out and it was something fare thinner than Pex Pipe. The biggest pressure the weakest link which is the water pump backspinning filling your freshwater tank. We had a problem on our last trailer when the pressure release valve failed on the hot water tank and back pressurized the cold water lines and filling up the freshwater tank. After that incident I added check valves on the cold side of the hot water tank and on the fresh water side of the pump.

That being said, I do limit black tank flush line to 40 PSI to keep from damaging the inline plastic vent.
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Old 08-15-2015, 01:10 AM   #4
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I would not exceed 50-60psi. Most pumps are rated for 40-45. I don't trust too many RV manufacturers, if any, to build a proper plumbing system that can take sustain pressure over the 60 psi range. Most of the units I have been in have the cheap bottom of the barrel fittings and they aren't assembled well. I have seen several units have lines blow out at 45 psi.

Aaron
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Old 08-15-2015, 03:07 AM   #5
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I run my adjustable reducer at 50psi and the water pressure is as good as it is at home.

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