High Water Pressure Relief 2018 View 24J

[Caterwhaller]

i hooked up to city water heard a gush… came in coach water running out under bed. turned off, hooked a pressure relief valve, turned water back on, all is well now. ? what happened?
2018 view 24j

 

[Morich]

We likely need more details on some points. When you say hooked up a pressure relief valve, where and what do you mean?
A new temp and pressure valve at the water heater? I'm not thinking of what other relief valve you might mean but that doesn't seem likely a popoff at that point outside would go inside??
If you are near mountains, it is easy to find extra high water pressure if they have the supply up on a hill high enough above you to get too much pressure.
What do you feel the pressure was at that location? I liked to carry a pressure gauge and a pressure reg if I felt it might be a problem.

Another thought to consider? Is there any chance there was a simple overfill problem and the overflow drain is not getting the water all the way out under the RV? Maybe the drain tube has gotten pulled up and dumps overflow on the floor instead of going all the way down and out?

Sorry, but the devil IS often in the details of things we don't know about!

 

[Caterwhaller]

thank you so much for the quick response. ok I hooked up water supply turned it on, water spewed somewhere under the bed. cut off water took off panels could see where water had spewed near water pump. water heater 10’ away dry. so i put an inline regulator on city water supply turned on water to find leak and nothing, no leaks water running fine.

 

[Morich]

Ok, thanks for helping me get straight! It's often easy to miss things.
What I might guess happened is that some of the fittings were getting higher pressure that they could handle. That might need a check with a pressure gauge at that site to verify. Or you may know more about where you were and sort out some possible causes? I have found that getting close to mountains where the campsite in down in the valley is prone to high water pressure!
The Western states are where we have found this more often. Perhaps just because we travel there more or maybe the way local cities developed over time?
If you get in a campground near town and they have a water tower up on the side of a mountain/hig hill. The water pressure can be extreme as it is the vertical distance between RV and tower that makes the pressure difference!
We have found some that have big notices at the campground entrance but not always!

But down to asking what might be prone to leaking under higher pressure?
We have a great online "interactive parts catalog" that lets us look at thing in detail without tearing the RV apart!

Parts Catalog

I was unsure of exact which RV as there are two build dates early and late, but I felt I could get the ideas across and went with one as example. If your RV is not exactly like this, I missed on my guess of which!
But I took a snip of what might be happening and you may want to see if you can get a look at some of these points.
Are you familiar with the fittings and how they connect flexible tubbing and PEX tubing? Often with clamps of various types? Those two types of tubing both show in the drawings for your RV and lots of connection near the water pump, so lots of possible suspects!

On this parts list, clicking on an item makes it show in yellow for ease of spotting. In this case I clicked on the blue cold water PEX and made it show in yellow. That left the other flexible braided tubing showing up as blue!! Sorry about the confusing colors?

But the idea is that both those tubi9ng use clamp and high pressure can create a leak at jonts if the clamp is prone to expanding a bit!
Or it can make the little filter cup which screws on the pump and has a tiny thin little rubber or ring seal, leak if the seal is not screwed on just right!

Or maybe as simple as one of the screw on fitting needs to be snugged up a bit more? Driving them up and down the road can rattle most anything apart!

I might want to take a look at hose things and possibly look for signs of any one specific point having been wet?
I might unscrew that little filter cup and make sure there is not a crack in it. Plastic can crack and expand enough to leak and then seem not to leak when pressure is less. But that may mean you have a slow drip most of the time instead of a full blown leak to spot it! Maybe the little filter O-ring is not in quite the right place?
I would want to look to see that I'm not driving around with a full time drip to rot things and just not come out for me to see!

Suggestion? IF you don't see any good signs and want to be alert, it may help to tape some paper like toilet tissue or paper towels around in the are. The tissue changes when it gets wet and that lets you see where water has been, even after it dries.
Maybe a bit of advance prep will help if it ever happens again?

Paranoid, I am!

Wish you luck in the search!

 

[Grapehound]

I once stayed at a winery in NY, where they used their winery well and water system to water their vineyard. (Hint: high PSI)

I hooked up to the winery spigot, turned on the water and water started leaking from under our sink out onto the kitchen floor right away.

The connections couldn't take the 100 PSI output from their system!

I put a pressure regulator on the city water input and we were fine, but I learned my lesson not to assume anything.