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08-04-2021, 09:19 AM
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#1
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1 Rivet Member
1972 27' Overlander
Canby
, Oregon
Join Date: Aug 2021
Posts: 15
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Where’s the Water!!!???
Howdy! I am the recent owner of a 1972 Overlander Double 27’. I bought this trailer as a mostly original and I’m working condition project. I wanted to test out the plumbing and see how everything works and make sure there are no leaks but after filling the onboard tank and not getting anything using the water pump, as well as hooking up the hose for shore water and still nothing. So at this point I’m at a loss.
Is there a simple main valve that I’m missing?
I’ve located what I believe to be all 5 valves on the trailer. 3 under the sink, one of them being the onboard tank drain valve. Then 2 in the rear which I think have to do with the water heater.
Any information will help, I’m brand new to the airstream world so I’m here to soak in as much information as possible.
I can post pictures if need be as well.
Thank y’all!
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08-04-2021, 10:03 AM
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#2
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Rivet Master
1971 25' Tradewind
1993 34' Excella
Currently Looking...
Estancia
, New Mexico
Join Date: Feb 2005
Posts: 7,742
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There should not be a factory installed main valve>
__________________
Sail on silver girl. Sail on by. Your time has come to shine.
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08-04-2021, 11:47 AM
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#3
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1 Rivet Member
1972 27' Overlander
Canby
, Oregon
Join Date: Aug 2021
Posts: 15
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So in theory, if all valves are open water should be running through the system, correct?
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08-04-2021, 01:02 PM
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#4
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Rivet Master
1971 25' Tradewind
1993 34' Excella
Currently Looking...
Estancia
, New Mexico
Join Date: Feb 2005
Posts: 7,742
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Yes, If you don't get water at the faucet remove the strainer on the faucet and see if it is clogged.
When you try to run off the fresh water tank does the water pump shut off or keep running?
__________________
Sail on silver girl. Sail on by. Your time has come to shine.
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08-04-2021, 01:40 PM
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#5
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Half a Rivet Short
2017 30' Classic
2022 Interstate 24X
Carlisle
, Pennsylvania
Join Date: May 2017
Posts: 15,674
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Hi
No water with shore water hooked up could easily be a pressure regulator or back flow preventer that's rusted shut.
Bob
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08-04-2021, 02:02 PM
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#6
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1 Rivet Member
1972 27' Overlander
Canby
, Oregon
Join Date: Aug 2021
Posts: 15
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Pump keeps running.
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08-04-2021, 02:03 PM
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#7
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1 Rivet Member
1972 27' Overlander
Canby
, Oregon
Join Date: Aug 2021
Posts: 15
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When hooked up to shore water, it does seems to leak somewhere right near the back, so that could make sense with a excess of pressure because of blockage.
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08-04-2021, 09:25 PM
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#8
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1 Rivet Member
1972 27' Overlander
Canby
, Oregon
Join Date: Aug 2021
Posts: 15
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Quote:
Originally Posted by uncle_bob
Hi
No water with shore water hooked up could easily be a pressure regulator or back flow preventer that's rusted shut.
Bob
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Would those be in the rear, close to where the shore water goes in?
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08-05-2021, 11:26 AM
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#9
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Half a Rivet Short
2017 30' Classic
2022 Interstate 24X
Carlisle
, Pennsylvania
Join Date: May 2017
Posts: 15,674
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Quote:
Originally Posted by CooperN.
Would those be in the rear, close to where the shore water goes in?
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Hi
They often are, but AS just *loves* to move things around ....
On an older RV, who knows what may or may not have been done over the years. An RV that did not have a pressure regulator when new could easily have had one installed at some point in the last 50 years .....
Bob
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08-07-2021, 03:27 PM
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#10
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1 Rivet Member
1972 27' Overlander
Canby
, Oregon
Join Date: Aug 2021
Posts: 15
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Update
Quote:
Originally Posted by uncle_bob
Hi
No water with shore water hooked up could easily be a pressure regulator or back flow preventer that's rusted shut.
Bob
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Howdy!
After tinkering and tinkering, I have FINALLY gotten water to all faucets, shower, and toilet via the onboard tank and pump. I believe the pump was probably air locked. So that is the good news.
Bad news is that I still do not have any water via the shore water inlet. I think my best bet would probably be, like Uncle Bob said, that either the regulator or the back flow preventer have rusted closed, or almost fully closed.
My question now is what would be my best option for restoring water from the shore inlet? Do I try to cut out the old regulator and back flow device and bypass with a modern one? Are there any tips or tricks to get them to work again so I can avoid chopping and patching pipes altogether?
I appreciate all the help thus far and thank you for any future help!
~ Cooper N.
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08-07-2021, 04:27 PM
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#11
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Rivet Master
1971 25' Tradewind
1993 34' Excella
Currently Looking...
Estancia
, New Mexico
Join Date: Feb 2005
Posts: 7,742
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If you cut out the pressure regulator you could easily replace it with a screw on regulator on the outside inlet.
__________________
Sail on silver girl. Sail on by. Your time has come to shine.
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08-08-2021, 07:55 AM
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#12
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Half a Rivet Short
2017 30' Classic
2022 Interstate 24X
Carlisle
, Pennsylvania
Join Date: May 2017
Posts: 15,674
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Hi
I'm not a big fan of "abandoning" chunks of plumbing. It tends to come back to haunt you later ..... I'd poke around (possibly with an inspection camera) and work out what's where.
A randomly selected example from Amazon:
https://www.amazon.com/Dual-Cameras-...8430871&sr=8-3
Bob
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