Purchasing our first RV and we are looking on Amazon for accessories. Just wondering what the max water pressure was for a typical RV? Should I buy the cheap one that allows 40 to 50 pounds of pressure or get an adjustable one with a gauge in case we need more pressure? Thanks

Get the stainless high flow water regulator

Go to The Water Filter Store and get an adjustable, a Valtera, or, better yet, a Watts. The Watts can be rebuilt if it ever fails. Set the pressure to 45 psi to 55 psi. The RV manufacturers usually recommend 45 psi, but the pumps nowadays come set to 55 psi. I called Winnebago and asked about 55 psi and they said that was fine.The Watts X65BG is the new model of the regulator I have. I recommend it. I am happy with brass. I would not pay extra for stainless steel. Brass has been used with potable water systems for generations.

For many years I used the simple water regulator like this:I actually had 2 of them. I never had any problems with over-pressure and the lines in my camper exploding or anything. I thought it worked pretty well.Then one time, we stayed at a KOA. The manager warned us to be sure to use a water regulator on our camper as the water pressure at the spigots was 110 pounds and that would blow out our lines if we didn't use a regulator.It was at that point, I had the "Ah Ha!" moment and realized I didn't know how trustworthy that device REALLY was.EVER since (and it's been a few years now), I don't attach a hose to my camper. I fill the fresh water tank and pump from there. When it gets low, I fill again. I may leave my water hose laying on the ground, but it's not attached. I know some folks will probably chime in with some pretty sophisticated water pressure regulator suggestions, with gauges, and valves, and settings, and everything else. But simplicity is the best. Isn't it? Your on-board pump will not over pressurize. I prefer to be 100% safe and never have to worry about it. Several years ago, we had a garden hose burst on us. I had the regulator between the hose and the camper. If it would have been between the spigot and the hose, it might have saved the hose. Something to think about? Where do you place the regulator?

I have no issues with my high flow 50-55 psi model. I frequent a campground with 80 to 100psi water pressure.Water Pressure Regulator

I have been happier with one like this. More flow at set pressure.Adj. Water regulator

water pressure regulater | Good Sam Community

wa8yxm
Explorer III
Nov 08, 2015
Question: Does your RV have a shower? The cheap ones like the brass one pictured a few replies above restrict flow and you won't be happy with them

Valterra makes an adjustable one that plays to good reviews on the net but I have not personally tested it.. Yet.

I have tested :Standard ones like the one above. Very low flow
"High Flow" Versions of the one above Still very low flow
Sur Flo, mine is an inline but is both functionally and physically identical to the units often installed in RV's at the factgory (They simply screw a hose fitting on the outlet end to make it "inline".. I give it a 9 when new.

Watts 3/4 inch and Zurin 3/4 inch with hose adapters.. These are adjustable have a "Bell" shape upper housing all brass. 3/4 inch was chosen for two reasons,m one was COST (Cheaper than half inch) and the other is ease of adaption to a hose coupling which is also 3/4 inch.

I give both of these a TEN when new

However as they (includes the sur-flow) The internal parts stiffen and flow is reduced.. I know the last 2 can be rebuilt (Got to get a kit for the Watts) Suspect the Sur Flo can as well (need to get kit for it too) but have not yet gotten the kits.. Have tore them down and put 'em back together (Easy to do) just have not got new internals.

Pressure I set is 50 PSI, RV stickered to 45 but I set to 50.. Generally anything under 60 is good.

Now here is the problem.. Regulator needs to go on the PARK end of the hose, nto the RV end.. 2nd if you have a fliter it may restrict flow, the solution is a higher fiter inlet pressure (Say 65 PSI) but if you do that you need a SECOND regulator on the filter outlet.. (Or a filter that is less restrictive (And less effective) can also be used.. how I do it).

Hope this helps.
dan-nickie
Explorer
Nov 08, 2015
icanon wrote:
enblethen wrote:
I have been happier with one like this. More flow at set pressure.
Adj. Water regulator

X2

X3
icanon
Explorer
Nov 08, 2015
enblethen wrote:
I have been happier with one like this. More flow at set pressure.
Adj. Water regulator

X2
Dakzuki
Explorer
Nov 08, 2015
What I did is get a Watts adjustable regulator from these guys LINK and hook it up to one of these LINK That I got cheap and replaced the crappy plastic faucet with a brass one. The whole assembly screws onto the campground outlet and I still have an outdoor faucet.
rockhillmanor
Explorer
Nov 08, 2015
rblake39 wrote:
Purchasing our first RV and we are looking on Amazon for accessories. Just wondering what the max water pressure was for a typical RV? Should I buy the cheap one that allows 40 to 50 pounds of pressure or get an adjustable one with a gauge in case we need more pressure? Thanks

First of all you should NEVER need/use more pressure. The regulator is set for what the lines in an RV can withstand. Henceforth why it is a regulator :W

Buy the brass ones. The plastic ones are worthless and break often.
rblake39
Explorer
Nov 08, 2015
Thanks guys. We just ordered it and will be picking it up in January. We will have the water pressure checked to 55 psi like path1 suggested during the PDI.
ncrowley
Explorer II
Nov 07, 2015
I had an adjustable one but it started leaking after a couple of years. We just purchased the Fairview 55 PSI pressure regulator on this page:

https://www.rvwaterfilterstore.com/PressureRegulators.htm

Since it is at the pressure we use all the time, it works great without spending a lot of money.
path1
Explorer
Nov 07, 2015
I use a 35 psi regulator on my waste tanks only. City water connection makes great hose holder once you get out hose to fill fresh water tank for self contained mode. To much to go wrong with unlimited water supply and plastic.

RV's supposed to be checked by manufacture to 55PSI (I believe is the latest) when being made. Of course that's before they bounce down the road and connections loosen up from pipes getting hot and cold or vibration.

What did your manufacture put in for plumbing? Solid pex with crimped fittings or connections made with hose clamps?

If buying new I would insist when doing PDI to include a water pressure check with a gauge to 55 psi.

Just me others do different.

Here is latest water mess...https://www.rv.net/forum/index.cfm/fuseaction/thread/tid/28632057/gotomsg/28632920.cfm#28632920

More info if interested...

http://www.rvdoctor.com/2015/06/properly-testing-rv-fresh-water-system.html
enblethen
Nomad
Nov 07, 2015
I have been happier with one like this. More flow at set pressure.
Adj. Water regulator
ChooChooMan74
Explorer
Nov 07, 2015
I have no issues with my high flow 50-55 psi model. I frequent a campground with 80 to 100psi water pressure.

Water Pressure Regulator