Reply
 
Thread Tools Search this Thread Display Modes
 
Old 03-29-2015, 05:47 PM   #1
2 Rivet Member
 
vincaroo's Avatar
 
1991 25' Excella
1995 34' Excella
Atlanta , Georgia
Join Date: Mar 2014
Posts: 27
What the #$^& is this thing?

Okay,

So we're in the middle of renovating our 25' 1991 Excella. We've started working on the plumbing and get to the connecting line between the white water tank and the pump only to discover this daisy chained mess of parts in a long string. Can anyone identify this? It seem really complicated. I'm assuming it has something to do with the pump switch, or pressure sensor....but I was wondering if such a long string of metal parts is necessary. Is there anything newer/simpler that I should install?

Thanks,
Jeff
Attached Thumbnails
Click image for larger version

Name:	IMG_20150208_130748.jpg
Views:	279
Size:	178.8 KB
ID:	235146  
__________________

__________________
vincaroo is offline   Reply With Quote
Old 03-29-2015, 05:53 PM   #2
4 Rivet Member
 
Davis's Avatar
 
1996 34' Excella
Americus , Georgia
Join Date: May 2004
Posts: 307
Do you have an auto fill switch on your range hood over the stove ? If so one of those things could be the solenoid activated by that switch which will fill the freshwater tank while city water is hooked up . Then you don`t have to manually fill it with water hose.
My 91 34ft had that feature.
__________________

__________________
1991 Airstream Excella 1000 34ft (SOLD)
1994 Chevrolet Crew Cab dually 2WD 6.5td
2005 Chevrolet Suburban LT 1500 2WD 5.3
WBCCI # 10219 Georgia Unit
AIR # 5131
Davis is offline   Reply With Quote
Old 03-29-2015, 05:55 PM   #3
Rivet Master
 
Bigventure's Avatar
 
2016 30' Classic
Currently Looking...
Hinckley , Ohio
Join Date: Sep 2009
Posts: 571
Images: 4
Well the silver thing is a check valve. The arrow shows the direction of flow. The black item is a solenoid valve. Most likely it shuts when the pump cycles off. That would help maintain the pressure if the check leaked.
__________________
If you could have a superpower, what would it be?

I chose America
Bigventure is offline   Reply With Quote
Old 03-29-2015, 06:01 PM   #4
Figment of My Imagination
 
Protagonist's Avatar
 
2012 Interstate Coach
From All Over , More Than Anywhere Else
Join Date: Dec 2011
Posts: 10,297
Quote:
Originally Posted by vincaroo View Post
So we're in the middle of renovating our 25' 1991 Excella. We've started working on the plumbing and get to the connecting line between the white water tank and the pump only to discover this daisy chained mess of parts in a long string. Can anyone identify this? It seem really complicated. I'm assuming it has something to do with the pump switch, or pressure sensor....but I was wondering if such a long string of metal parts is necessary. Is there anything newer/simpler that I should install?
Cylindrical gizmo with the arrow is probably a check valve (AKA backflow preventer), the arrow showing the direction of flow.

Don't even want to hazard a guess about the black box with the wires. For all I know, it could be a GNDN valve (GNDN - Goes Nowhere, Does Nothing).
__________________
WBCCI #1105
TAC LA-4

My Google-Fu is strong today.
Protagonist is offline   Reply With Quote
Old 03-29-2015, 07:03 PM   #5
Rivet Master
 
AWCHIEF's Avatar
 
2006 23' Safari SE
Biloxi , Mississippi
Join Date: Nov 2011
Posts: 8,135
Images: 33
Looks like something Rube Goldburg would be proud of.
__________________
MICHAEL

Do you know what a learning experience is? A learning experience is one of those things that says "You know that thing that you just did? Don't do that."
AWCHIEF is offline   Reply With Quote
Old 03-29-2015, 07:14 PM   #6
Rivet Master
 
drboyd's Avatar

 
1978 25' Tradewind
Metro Phoenix , Arizona
Join Date: Jun 2003
Posts: 1,428
The black gadget with the red wires could also be a pressure switch. That would be an odd application though - maybe a switch that opens under a slight vacuum so you don't collapse your white water tank if the vent gets plugged up.
__________________
"Between what matters and what seems to matter, how should the world we know judge wisely?" - E.C. Bentley, Trent's Last Case
drboyd is offline   Reply With Quote
Old 03-29-2015, 07:26 PM   #7
Rivet Master
Commercial Member
 
lewster's Avatar
 
Vintage Kin Owner
Naples, FL , Hood River, OR
Join Date: Dec 2005
Posts: 7,279
The black box with the wires protruding from it IS a solenoid valve, which might possibly be used for an auto-fill device. Many large motor homes use a similar (but much newer) device for the same purpose. The cylinder with the arrow is a check valve, or back-flow preventer. It certainly looks like a Rube Goldberg (shade tree plumber) installation with the much smaller diameter copper used to attach it to the grey tubing.

Of more concern is the polybutylene tubing that is evident everywhere. If it were my trailer, I would remove ALL of it at your first opportunity. It is known to fail in a variety of situations. Just Google it and start to read the chronicles.
__________________
Lew Farber...ABYC Certified Master Marine Electrician...RVIA Certified Master Tech ...AM Solar Authorized Installation Center...AIRSTREAM Solar & Electrical Specialist...Micro Air 'Easy Start' Sales and Installations
lewster is online now   Reply With Quote
Old 03-29-2015, 07:27 PM   #8
Rivet Master
 
mandolindave's Avatar
 
Join Date: Jan 2004
Posts: 2,115
Images: 4
coincidence????

I add my antifreeze between the freshwater tank and the pump. I used to have to take it apart to add the antifreeze. I let the pump suck up the antifreeze. The fresh tank left unhooked so I didn't get antifreeze in it. I added valves so I didn't have to take it apart.

That would have been an easy place to add check valves. And also a common spot to need to make repairs
__________________
mandolindave is offline   Reply With Quote
Old 03-29-2015, 07:47 PM   #9
Rivet Monster
 
wahoonc's Avatar

 
1975 31' Sovereign
1980 31' Excella II
Sprung Leak , North Carolina
Join Date: Jun 2003
Posts: 7,174
Images: 40
Quote:
Originally Posted by AWCHIEF View Post
Looks like something Rube Goldburg would be proud of.
AKA standard factory installation... you should have seen some of the creative plumbing in my 1975.

Aaron
__________________
....so many Airstreams....so little time...
WBCCI #XXXX AIR #2495
Why are we in this basket...and where are we going
wahoonc is offline   Reply With Quote
Old 03-29-2015, 08:11 PM   #10
Rivet Master
 
batman's Avatar

 
1964 22' Safari
modesto , California
Join Date: Jul 2010
Posts: 561
Seen many of them in my day. That my friends is a Flux Capacitor!
__________________
batman is offline   Reply With Quote
Old 03-29-2015, 08:16 PM   #11
2 Rivet Member
 
vincaroo's Avatar
 
1991 25' Excella
1995 34' Excella
Atlanta , Georgia
Join Date: Mar 2014
Posts: 27
Hey guys.....
Yes, the polybuylene tubing is the reason why we're replacing all of our plumbing, thanks Leswter.
Yes, we have an autofill on the control panel over the range, so I'll guess that you guys are right that the black wired thingy is a solenoid....any need to replace it if it still works (it did last season)?
Okay, the cylindrical doohickey is a check valve...should I replace this....or how do I know if its working?
Indeed, this is definitely a "Rube Goldburg"...do you think I can eliminate all of the unnecessary "stuff" with my replacement plumbing or are the diameters of the pipes in a pressure sensitive area relevant (i.e. could I screw it up if I replace with my new plumbing)?

Wow....you guys always amaze me...we're so fortunate to have such a great and supportive community!

Jeff
__________________
vincaroo is offline   Reply With Quote
Old 03-30-2015, 08:49 PM   #12
New Member
 
2005 19' International CCD
Selbyville , Delaware
Join Date: Mar 2014
Posts: 2
It's probably a switch for the pump

It looks like a typical marine pump set up. The flow valve stops water and pressure from going back into the water tank when the system is not hooked to a pressurized water supply. The black box detects pressure on the pipes leading to the faucets. If someone opens a faucet, the black box detects the pressure drop between the flow valve and the faucet and the relay inside the black box connects the pump to the battery so that water is pumped to the faucets. The installation uses compression fittings to match copper tubing to the plastic pipes. If you disconnect the water system from city water, you should hear the pump cycle on when you turn on a faucet. If it does not, check whether the wires from the black box go to a pump and whether they are live when the system has an open faucet.
__________________

__________________
Dowler 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
Samsung tv goes on & off & on & etc jump Electronics & Connectivity 22 03-03-2015 07:01 PM
Didn't know there was such a thing as 14.5" rims 59toaster Wheels, Hubs & Bearings 1 05-04-2009 10:23 PM
Help me turn this Dometic thing on!! 74Sovereign Refrigerators 1 03-10-2003 10:59 AM
The Real Thing 4521red Our Community 5 01-05-2003 01:01 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 05:46 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.