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Topic: City Water inlet, leak, what's this thing? (Read 431 times) previous topic - next topic

City Water inlet, leak, what's this thing?

Tackled one of the issues on the list today. There was a leak in the rear water bay and I saw some pooling in the bulkhead. (bulkhead will need repairs already, it's on the list) opened up the panel and found this thing leaking from the middle of the brass housing. What is it?

I just eliminated it and put in some new PEX. Leak fixed but curious what I removed.


Re: City Water inlet, leak, what's this thing?

Reply #1
That is your pressure regulator. If you are going to eliminate it buy one and put it between your camp faucet and the hose.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: City Water inlet, leak, what's this thing?

Reply #2
That's what I guessed but with the open hole through the middle I was confused how it would regulate pressure...I will use an inline one from now on. Thanks!

Re: City Water inlet, leak, what's this thing?

Reply #3
It's missing some parts. A spring and ball.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: City Water inlet, leak, what's this thing?

Reply #4
It's missing some parts. A spring and ball.


Ahh! That makes sense. Don't think I dropped anything out of it. I bet someone had it apart and lost them along time ago. Guess it's a good thing it leaked. What pressure is a safe psi on these coaches? Just curious.

Re: City Water inlet, leak, what's this thing?

Reply #5
I don't know the factory regulator pressure but if you buy a rv regulator off Amazon it will work.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: City Water inlet, leak, what's this thing?

Reply #6

Ahh! That makes sense. Don't think I dropped anything out of it. I bet someone had it apart and lost them along time ago. Guess it's a good thing it leaked. What pressure is a safe psi on these coaches? Just curious.
I recall that 55 PSI was a good number. But as has been discussed. Live off your house tank and water pump. Just use the RV park spigot to fill your fresh tank. That way, If you do spring a leak in your plumbing you WILL NOT have an unlimited supply of flood water. We also make sure to turn off the house pump when leaving the coach or going to bed.
Jerry & Nona and Kimeru the cat that thinks she's a dog
1998 36' WTFE U320  #5314 Motorcade #17711
USAF 1975-1995
2019 Subaru Crosstrek 'toad'
2003 Subaru Legacy touring car
jerry Fincher | Flickr

Re: City Water inlet, leak, what's this thing?

Reply #7
I don't know the factory regulator pressure but if you buy a rv regulator off Amazon it will work.
We use a Valterra like the items linked below.  Don't remember where we bought it...probably at Walmart.  It came set for 45 psi and that's where I left it.  Seems to work - our water pipes have never exploded.

Valterra A01-1117VP Adjustable Water Regulator - Walmart.com - Walmart.com

Amazon.com: Valterra RV Water Regulator, Lead-Free Brass Adjustable Water...



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1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: City Water inlet, leak, what's this thing?

Reply #8
My favorite water pressure regulator  (I have tried many, including high end adjustable)

Fixed Regulators 
Dan - Full timing since 2009
2003 U320 40' Tag 2 slide

Re: City Water inlet, leak, what's this thing?

Reply #9
I have a regulator, then a filter, "permanently" plumbed in. That way I can't (maybe) leave things behind. Behind the factory inlet connection is a check valve. It is a bit of a process to get to, but not all that difficult - just take out a few dozen screws that hold two pieces in place.