Reply
 
Thread Tools Search this Thread Display Modes
 
Old 08-16-2009, 09:24 PM   #1
Don't forget your cat nap
 
Ag&Au's Avatar
 
Port Orchard , Washington
Join Date: May 2009
Posts: 4,464
Images: 1
Question Exterior water shutoff valve

I am going through the systems in my new classic 31D and have run into an anomaly.
The exterior water shut off valve functions fine using internal water tank and pump. However when city water is used, the shut off valve has no effect, the water continues to flow.. I can see that the valve is bridged by pipe with some sort of brass device in line. Perhaps a check valve or something similar. I have an idea that it is working normally, but I would appreciate it if someone would explain it to me why it is this way. I've found nothing in the manual to help.
Thanks,
Ken
__________________

__________________
Ag&Au is offline   Reply With Quote
Old 08-17-2009, 01:12 PM   #2
Don't forget your cat nap
 
Ag&Au's Avatar
 
Port Orchard , Washington
Join Date: May 2009
Posts: 4,464
Images: 1
First I apologize for bumping my own post. I assume that is poor etiquette.
However I posted it late last night, and I would like to give it try one more time for a response. The dealer has no idea about what is going on.
Thanks,
Ken
__________________

__________________
Ag&Au is offline   Reply With Quote
Old 08-17-2009, 02:16 PM   #3
Rivet Master
 
richinny's Avatar
 
2011 34' Classic
Westchester Cty.NY , / Miami FL
Join Date: Jul 2007
Posts: 3,122
a picture would be a big help.
__________________
Ricky
2012 F150 Super Crew 5-1/2' bed Ecoboost 4x4 3.73 elec. lock diff. Propride hitch
give life. kidney & pancreas transplant 9/9/06
Ingrid-my unofficial '"World's Oldest Streamer" 1909-2008 R.I.P.
richinny is offline   Reply With Quote
Old 08-17-2009, 06:11 PM   #4
Don't forget your cat nap
 
Ag&Au's Avatar
 
Port Orchard , Washington
Join Date: May 2009
Posts: 4,464
Images: 1
Hi,
Here is a picture of the plumbing. The top of the left vertical pipe with the silver valve goes to the cold water plumbing. The bottom goes to the exterior water. (a standard outdoor faucet mounted in a lower outdoor compartment). The valve's purpose is to cut the supply to the faucet in freezing weather. As you can see, the valve is in the off position. If the trailer water supply is the tank and pump, the valve functions as one would expect. However if the supply is city water, the brass device that bypasses the valve is apparently allowing full flow to bypass the valve. I am wondering what the brass device is and what its purpose here is.
Thanks,
Ken
Attached Thumbnails
Click image for larger version

Name:	IMG_0126 (Large).jpg
Views:	109
Size:	103.8 KB
ID:	85556  
__________________
Ag&Au is offline   Reply With Quote
Old 08-17-2009, 07:49 PM   #5
Rivet Master
 
easyride's Avatar
 
1977 27' Overlander
1973 27' Overlander
1963 19' Globetrotter
Naples , Florida
Join Date: Nov 2007
Posts: 1,259
Images: 1
It is a check valve,and I can not understand why it would even be there,I can`t see what the purpose of it would be. I would delete it. Dave
__________________
easyride is offline   Reply With Quote
Old 08-17-2009, 08:59 PM   #6
Rivet Master
 
Gene's Avatar
 
2008 25' Safari FB SE
Grand Junction , Colorado
Join Date: Sep 2007
Posts: 10,840
w7ts,

I have this vague and possibly incorrect memory that this question has been asked before.

I believe the eventual answer showed that the manual valve and the one way valve made sense.

This is not much help I realize.

Not knowing the whole system, it's hard to figure out. I am unsure which way what flows from where. It sounds like there's an external hose bib the way you describe it, but in other trailers the lower outdoor compartment is where you fill the fresh water tank. Does the one way (check) valve permit draining of the pipes for winterizing—here I am in major speculation mode. On the other hand, the manual valve may be a bypass or for draining pipes. I am leaning toward the manual valve being for draining something and the normal position being closed. Which way does the check valve permit water to flow—downward or upward? It's all there for a reason because Airstream doesn't spend money on valves that don't have a purpose.

Our trailer has a similar manual valve for draining a pipe, though I don't know which pipe. It's below the water heater bypass and is not mentioned in the manual. Airstreams are full of mysteries.

Gene
__________________
Gene is offline   Reply With Quote
Old 08-17-2009, 10:16 PM   #7
Don't forget your cat nap
 
Ag&Au's Avatar
 
Port Orchard , Washington
Join Date: May 2009
Posts: 4,464
Images: 1
Hi Gene,
Thanks for the response. My posts #1 and #4 in this thread explain the purpose of the valve. Since the dealer doesn't know what it is, I am going to see what happens when I call Airsteam tech support and ask them.
regards,
Ken
__________________
Ag&Au is offline   Reply With Quote
Old 08-17-2009, 10:20 PM   #8
Don't forget your cat nap
 
Ag&Au's Avatar
 
Port Orchard , Washington
Join Date: May 2009
Posts: 4,464
Images: 1
Quote:
Originally Posted by easyride View Post
It is a check valve,and I can not understand why it would even be there,I can`t see what the purpose of it would be. I would delete it. Dave
I was thinking maybe I will replace it with a silver valve identical to the other. That will cause some one to think 30 years from now.
__________________
Ag&Au is offline   Reply With Quote
Old 08-18-2009, 04:49 AM   #9
Rivet Master
 
1977 31' Sovereign
1963 26' Overlander
1989 34' Excella
Johnsburg , Illinois
Join Date: Jul 2005
Posts: 2,941
I think this may be the manual valve which allows you to bypass the check valve so you can fill your fresh water directly from the city supply rather than having to pour water into the outside funnel to fill the tank. I would not take the valve out. The valve should normally be shut, so the city water would not overfill the tank.
__________________
dwightdi is offline   Reply With Quote
Old 08-18-2009, 06:01 AM   #10
3 Rivet Member
 
2009 30' Classic
Salem , Alabama
Join Date: May 2009
Posts: 96
Send an EM to: rmcneely@airstream.com. He is customer S rep and will respond ASAP. Randy is top notch, he is my go to guy on several issues.woppa4 ps include picture.
__________________
woppa 4 is offline   Reply With Quote
Old 08-18-2009, 07:11 AM   #11
Rivet Master
 
DEITZ645's Avatar

 
2006 30' Classic S/O
Currently Looking...
Mohrsville , Pennsylvania
Join Date: Jun 2006
Posts: 1,313
Images: 10
Same Plumbing In Our '06

I have the same plumbing in our '06 and I knew the brass fixture was a check valve, but I never have been able to figure out the purpose of the chrome valve.

I will try the fill the fresh water tank hypothesis this evening. But I though there was also a built in check velve in the water pump that would prevent any kind of back flow into the tank.

I also thought it might have something to do with draining the system, but even if you open it the built in pressure regulator / check valve where you hook up the city water would prevent any backflow.

I will be VERY interested to hear what the folks at the mother ship have to say about the mystery valve.
__________________
Carl, Elaine & Finn The Beagle
2006 30' Classic W Slide & Limited Package Katarina
2006 GMC 2500 HD 6.6 Turbo Diesel Crew Cab 8' Bed
TAC PA-3
S/OS#042
AIR #14487
NQ3U (was KB3UOM)
DEITZ645 is offline   Reply With Quote
Old 08-18-2009, 09:43 PM   #12
Don't forget your cat nap
 
Ag&Au's Avatar
 
Port Orchard , Washington
Join Date: May 2009
Posts: 4,464
Images: 1
Quote:
Originally Posted by woppa 4 View Post
Send an EM to: rmcneely@airstream.com. He is customer S rep and will respond ASAP. Randy is top notch, he is my go to guy on several issues.woppa4 ps include picture.
Well, Thanks to everyone.
I had emailed Airstream customer service this morning using their web site. By coincidence, it was Randy who called me on the phone to discuss this. I now know what the brass object is and why it is there.
The exterior faucet and the City water connection are not only a few inches apart, they are on the same pipe. In other words they are both on the pipe below the valve and brass thing.
The purpose of the silver handled valve is to cut off the water to the exterior faucet when the temperature outside will be below freezing. Apparently the assumption(reasonable I think) is made that when it is freezing outside, you will not have the city water hooked up. The procedure is to close the silver handled valve and then go outside and open the exterior faucet to drain the pipe between it and the silver handled valve. The brass object is a check valve that allows water to flow up (in the picture), but not down. This is to allow the city water to reach the system even when the silver valve is closed. If the city water is hooked up, the silver valve does not come into play. Since the city water connection and external faucet are only separated by a short length of pipe with nothing in between, the exterior faucet will put out water regardless of the position of the silver valve.
That's my story and I'm sticking to it .
Thanks again to all.
Ken
__________________
Ag&Au is offline   Reply With Quote
Old 08-18-2009, 09:48 PM   #13
Rivet Master
 
Gene's Avatar
 
2008 25' Safari FB SE
Grand Junction , Colorado
Join Date: Sep 2007
Posts: 10,840
On our trailer, you just disconnect city water when it is freezing and there are no valves at all. I wonder why they made it so complicated on the Classic?

Gene
__________________
Gene is offline   Reply With Quote
Old 08-18-2009, 09:58 PM   #14
Rivet Master
 
richinny's Avatar
 
2011 34' Classic
Westchester Cty.NY , / Miami FL
Join Date: Jul 2007
Posts: 3,122
do they do this to confuse us? lol
__________________

__________________
Ricky
2012 F150 Super Crew 5-1/2' bed Ecoboost 4x4 3.73 elec. lock diff. Propride hitch
give life. kidney & pancreas transplant 9/9/06
Ingrid-my unofficial '"World's Oldest Streamer" 1909-2008 R.I.P.
richinny is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
shower water valve, water is cold!!! cnsilver Sinks, Showers & Toilets 3 11-02-2008 07:51 AM
12 volts shutoff then come back on??? dnrtheil Electrical - Systems, Generators, Batteries & Solar 9 05-01-2007 11:54 AM
Is the univolt charger have automatic shutoff? Mrcrowley Electrical - Systems, Generators, Batteries & Solar 2 05-27-2006 04:56 PM
leaky shutoff valve? JohnGalt48 LP Gas, Piping, Tanks & Regulators 0 07-13-2005 07:06 AM
Kohler Fuel shutoff problems rdm Mechanics Corner - Engines, Transmission & More... 5 11-12-2002 08:11 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 07:39 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.