Max Water Pressure Recommended

[Dylanfreak]

Brand new Cardinal 3950TZ. I've asked the dealer, to ask Forest River, what the max recommended pressure is, and they don't know. I'm sure someone will eventually come back with an answer, but I find it somewhat puzzling they don't have that type of info handy.....Forest River that is, not the dealer. Puzzling yes, surprising, no.

[donniedu]

45PSI is the normally accepted number. Most pressure regulators are preset at 45PSI, as are most all home regulators.

[bob caldwell]

Most people posting about this say 55......

[NMWildcat]

We have found a 50psi high flow regulator works best for us. The plumbing will handle much more that that. The highest we have run at for an extended time was 80psi.

[Dylanfreak]

Well aware that 45 might be what's perceived as normal, and the regulators hold it between 40-50, and....some folks set it at 55, but I'm interested in having the mfg tell me their answer. Terrible water pressure, with the set regulator, on a brand new rig. I put the guage on it, and it ran at 40. w/o the regulator, the campground is at 100. I just put an adjustable one on, set it at maybe 48, and it is better. Before I turn it up any further, I figured I'd ask FR themselves, get the answer right from the source. Next step, swap out the shower head, with the Oxygenics......since the pressure out of the shower is still lousy, even with the adjustable regulator set at 48.

[bob caldwell]

Then why ask on forum?

[Dylanfreak]

Not sure FR monitors? That's why.

[bob caldwell]

If they do, they won't answer......

[Dylanfreak]

Wasn't sure. If not, the forum certainly learns me plenty and I are much smarter than I was befour I red anything on it.

[NMWildcat]

If pressure is that bad in the rig, check your valves to ensure fully open/closed. Some folks remove the filters/screens at the end of faucets, and check for bad back flow valves. Then there is always taking it in under warranty.

[Tom48]

If you have 45 PSI and only one fixture open and pressure is inadequate I would suspect debris or some other problem plugging up the flow.

[kayo]

My Prime Time Sanibel is listed as 100psi (label nest to the fresh water inlet). However, most of the RV hoses will not handle that pressure, so after two hose blow outs, I reduce it to 60 # with a adjustable regulator

[grumpyoldman]

Originally Posted by Tom48

If you have 45 PSI and only one fixture open and pressure is inadequate I would suspect debris or some other problem plugging up the flow.

X2

[grumpyoldman]

Set your regulator for 55 to 60 psi. The PEX tubing is rated for much higher than that. 60 psi gives a good flow and well below the rated plumbing pressure.

[BamaBob]

I am almost positive that all the FR RVs -especially in your class-use PEX these days, which has a burst rating of 300PSI. Problem is, the connectors are the weak link.

Since you have a high-end 5er, I would expect the connecters to be pretty robust (if you can find one connector, say under your sink, see what they are using).

I'd buy a good adjustable pressure regulator (look on Amazon for a Valtarra) and set it for 65PSI. That is "residential" water pressure. Depending on the campground and load you may or may not get that PSI at a given campground.

[SEAYALL]

Call your factory tech.

[Wolverine 1945]

I would be a little worried about a dealer that did not know what the pressure should be ??? I use 35 when blowing unit out when winterizing !!!

[Chuckinca]

When our then 5 YO TT was at the Goshen area factory for slide repairs they pressure tested the water lines to 150 PSI.

.

[Wolverine 1945]

WOW 150 psi,,, I would not have the stones to apply 150 lbs to any RV !!!

[CC75]

Water pressure is one aspect of the rate of which water enters the rig. The second aspect is the amount of water. What diameter is your outside hose (5/8 or 1/2)? Also, do you have a Y at the outside faucet, which may restrict flow.
Do you have water filter that may be not functioning properly and restricting flow.