What is the safest water pressure(on the high side) coming into the RV? I don't want to pop any water lines,but I want good pressure..... Thanks in advance,Tom

We use a shurflo extreme 5.7 pump. water pressure is 65 psi. We often turn it on to augment the pressure when hooked up at campgrounds.No problems at all with the plumbing.Also this variable speed pump is much quieter, even at high flow, than the basic pump it replaced.

IF your RV was assembled correctly 65 PSI should be good, if not... You can do a leak test using air. I use the plug I use for blowing out the water lines and pump up the system for a leak down test. If I lose pressure I start looking for leaks using soapy water (beats having water spray all over the place). I also check for gas leaks at the same time, and easier to do, turn on the gas and turn it off if you come back the next day and turn it on and get a substantial flow back up to pressure you have a leak.

A pressure regulator between the faucet and hose delivering water to your RV is good insurance.

Mfar1234 wrote:to be safe....40 - 45I'm at 42 and am happy with it, things will last longer too.

What is the best water pressure coming into the RV?

18 Replies

Bob___Ann
Explorer
Apr 07, 2014
We run 50-55 Pounds on ours as that is needed for the tankless water heater. We regulate it through a Watt water regulator.
paulcardoza
Explorer
Apr 07, 2014
I have my WATTS set @ 65psi
Sturgeon-Phish
Explorer
Apr 07, 2014
We opened up our camper this weekend and hooked up the water with an inline regulator. After flushing the water system, I started working on something eles and the outside shower faucet handle blow off the faucet. Luckly I had the door open from flushing and no water entered the unit. I figure the regulator went bad,and I have no idea what my supply pressure was. Not many people were at camp and I'd say the pressure was pretty high. In hindsight the pressure when flushing was higher than normal. I'm replacing the regulator with one that has a gauge.
Live and learn or read forums and learn from others!
Jim
thestarfinder
Explorer
Apr 07, 2014
Thanks for all the great responses! I will try different pressures and go from there...Thanks again,Tom:C
HHg_in_Austin
Explorer
Apr 06, 2014
I use an adjustable Watts-285 regulator, and keep it set at 52psi. Gives me great pressure with super flow !!

Hhg
bluwtr49
Explorer II
Apr 06, 2014
I changed my internal regulator from 45 psig to 60 psig and it works much better.

Inlet with regulator
wa8yxm
Explorer III
Apr 06, 2014
My RV says "45PSI max" but I think Im feeding it 49 (As close to 50 as I can get with the gauge I am using) Generally, from what I am told, PEX can take whatever you feed it (Within reason, 120 NOT a problem) but sometimes the fittings get a bit....anemic.

But some of the valves used in RV's start blowing up around 60 PSI. so 45-50 is what I consider the safe range.
debandi
Explorer
Apr 06, 2014
We use a household water pressure regulator screwed onto the faucet and factory set at 50PSI. No problems. And its big enough so we don't forget it when we disconnect to leave the campground.
Clay_L
Explorer
Apr 06, 2014
I have had my Watts whole house regulator set to 65 psi for ten years. I have spent three summers where the unregulated pressure was 140 psi so my plumbing and fixtures have seen extended periods of time at 65 psi.
Early on I replaced the kitchen and bathroom faucets with residential units that are rated to 85 psi. The shower is still the original RV type and still works fine.
RoyB
Explorer II
Apr 06, 2014
We usually use our fresh water tank and own water pump when setup. The city water connections always are different everywhere we end up.. I know what the pressure is using my own water pump... Since we camp alot off the power grid always nice to know if the fresh water tank and pump is working good anyway.

I hookup a water hose with spigot to the city water connection and hang the spigot on the front deck railing. Great for squirting squirrels.. Easy to fill up fresh water tank with spigot.

Roy Ken