Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
 


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 06-09-2023, 01:15 PM   #1
65will
 
65will's Avatar
 
1969 25' Tradewind
Greenwich , New York
Join Date: May 2012
Posts: 47
Gray tanks

Has anyone put gray tanks in a vintage trade wind with the shell on, working from underneath? I'm thinking about putting 2 in from VTS. Can I use one vent on one tank to vent both. Looks like picking up the kitchen sink will be easy, the tub and bath sink may take more effort. Also looking at routing the black to same exit point. What do you think? Is it doable?
65will is offline   Reply With Quote
Old 06-09-2023, 01:51 PM   #2
Rivet Master

 
1966 22' Safari
1955 22' Flying Cloud
Fredericksburg , Texas
Join Date: May 2015
Posts: 2,845
Take a look at Post #46 on our renovation thread listed. We placed two of the VTS 4Ē tanks forward and aft of the axle. I ran the sink into the forward one and vented that. Both tanks are connected so one vent is all we needed. I had a macerated pump so that is what we use. I also have a manual drain with a water hose fitting in the event the pump doesnít work. As far as placing the tanks from below, I would try it if thereís no reason to lift the shell. You may have to come in two feet from each side and cut the center piece of belly pan out. The only issue would be the width of the space between your crossmembers to have room for the tank. You may have to cut one crossmember out and weld another with more space between. Others will have ideas. Good luck
Bubba L is offline   Reply With Quote
Old 06-09-2023, 03:43 PM   #3
65will
 
65will's Avatar
 
1969 25' Tradewind
Greenwich , New York
Join Date: May 2012
Posts: 47
Thanks Bubba, that is what I have in mind. I will drop the belly pan to do this. I had it off when I first got the trailer. This will be a Winter project. We are active with the trailer for the summer. We use a blue boy for gray now. I will put the new drain right behind the rear wheels.
65will is offline   Reply With Quote
Old 06-09-2023, 04:28 PM   #4
Rivet Master
 
Aerowood's Avatar
 
1971 21' Globetrotter
Currently Looking...
Currently Looking...
Currently Looking...
Arvada , Colorado
Join Date: May 2006
Posts: 3,499
I am currently installing grey tanks on my 71 Globetrotter. I got them years ago from RV Surplus. They measure 20" x 36" x 4". I am putting in 3. You can see the install in my "71 Globetrotter Full Monte" thread. I plan on having all 3 in by the end of next week.

Sent from my Lenovo YT3-X90F using Airstream Forums mobile app
Aerowood is offline   Reply With Quote
Old 06-09-2023, 07:17 PM   #5
Rivet Master
 
Belegedhel's Avatar
 
1973 21' Globetrotter
Houston , Texas
Join Date: Sep 2009
Posts: 3,261
It is all doable--I did mine with the frame flipped over, but I am sure most people who add gray tanks to a vintage trailer do so from underneath.

If you are going to add two tanks and link them together, you can have a single vent out of the roof of the trailer, but you will need to vent each of the tanks in order to not have trapped air in an unvented tank. This would not be necessary if you could link them absolutely flush with the tops of the tanks, but it isn't possible using spin-on fittings.

good luck!
Belegedhel is offline   Reply With Quote
Old 06-09-2023, 10:38 PM   #6
Rivet Master
 
57Vintage's Avatar
 
1958 26' Overlander
Battle Ground , Washington
Join Date: Jun 2013
Posts: 863
Images: 22
I agree with Belegedhel that each tank needs to be vented. You won't always be perfected level side to side/front to back. (lesson learned the hard way). In a perfect world you should vent at opposite ends and opposite sides (i.e. front tank front corner curb side; rear tank rear corner street side). That isn't always practical, but something to consider.

There are flush mount spin weld fittings available, but being recessed means they won't allow a tank to completely fill. You have to drill a hole through your subfloor anyway, so it has to be a little larger with protruding fittings.

https://www.vintagetrailersupply.com...tings-vts-344/

You can have VTS mount the fittings for you, but make very accurate measurements of where the fittings will be not only on the tank, but where they line up in your subfloor (under the cabinet, not in the aisle). They are not hard to install with a good router and the proper driver.

I would also suggest having a valve between the gray tanks so water doesn't migrate back and forth while traveling. I used a cable operated valterra valve that is located on the shelf of the kitchen sink cab.

Click image for larger version

Name:	Sink cab with new sink storage space and furnace grill 3.jpg
Views:	24
Size:	219.8 KB
ID:	432993

Pull up to open down to close.
__________________
Harold & Rebecca

Our thread:
https://www.airforums.com/forums/f97...er-172124.html
57Vintage is offline   Reply With Quote
Old 06-11-2023, 04:52 AM   #7
65will
 
65will's Avatar
 
1969 25' Tradewind
Greenwich , New York
Join Date: May 2012
Posts: 47
Pipes hidden inside?

Thanks for all the input. Thinking about the pipes. Would you run them inside and go into the top of the tanks, or go underneath and into the side of the tanks up high? It looks like I can drop through the floor with the existing pipes and vent. I won't know until I drop the belly pan what I will get into, like duct work. Which is on the roadside. Thanks again for the input.
65will is offline   Reply With Quote
Old 06-11-2023, 08:43 AM   #8
Rivet Master
 
57Vintage's Avatar
 
1958 26' Overlander
Battle Ground , Washington
Join Date: Jun 2013
Posts: 863
Images: 22
Assuming you're referring to vents. I would recommend on top. If you install the fittings on the side you automatically get an air space equal to the thickness of the fittings (inside diameter versus outside diameter). A minor point if mounting on top is not feasible, but every bit of capacity is nice to have.
__________________
Harold & Rebecca

Our thread:
https://www.airforums.com/forums/f97...er-172124.html
57Vintage 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
Tanks, Tanks, Tanks PSU1981 Plumbing - Systems & Fixtures 8 09-02-2019 09:34 AM
Black and Gray water tanks NavyDavesCvl 1956 - 1965 Caravel 4 03-20-2010 09:21 AM
'59 Tradewind I need new black and gray tanks tomsdayoff 1959-69 Tradewind 28 05-06-2008 10:31 PM
Anyone have any luck putting Gray and black tanks in a 63 tradewind??? durans54 Waste Systems, Tanks & Totes 1 12-05-2006 08:56 PM
Combo Gray/Blk Water Tanks MaShep 1997 - 2004 Bambi 6 01-20-2004 04:24 PM


Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.



All times are GMT -6. The time now is 02:40 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2023, Jelsoft Enterprises Ltd.