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Old 02-24-2009, 10:15 PM   #1
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Can I add a grey tank?

Considering the purchase of a 25 foot '74 Land Yacht, and I confirmed with the seller that there is no grey water system, and that the sink and shower simply exhaust onto the ground. Not allowed anywhere these days, of course.

Of course, I could use one of those portable tanks, but long term, I know that would be a PITA.

Can anyone tell me if there is space down below to add a grey tank, and if so, a "thumbnail sketch" of what would be required to get it in there, with the proper plumbing connections for the sink and shower?

Everything else about this AS suits me to a "T", hoping it isn't as big a job to do as I suspect it is... :/
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Old 02-24-2009, 10:19 PM   #2
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There is a huge amount of good info available on this subject on the forums. Try doing a search, although the function is not always completely functional!

To see what we did go to our blog:

http://www.airforums.com/forums/blog...tallation-144/

http://www.airforums.com/forums/blog...on-update-166/

Have fun!
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Old 02-24-2009, 11:18 PM   #3
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Yes, we paid 800 dollars to have it put in our Caravel.
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Old 02-24-2009, 11:35 PM   #4
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I do believe that 1974 was the first year that Airstream included grey tanks.
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Old 02-25-2009, 05:43 AM   #5
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In my 73, the grey water comes out the black water connection. If you use a site with full hook ups, it will just run freely out the drain pipe. There is an adapter cap that has a hose bib that allows you to run it to a blue tote while the black water tanks fills on no hook up sites.

I thought 74 was the 1st year of grey tanks as well. Check the VIN. My PO was selling this one as a 74 as well, it wasn't.
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Old 02-25-2009, 12:37 PM   #6
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Yes, we paid 800 dollars to have it put in our Caravel.

And well worth the cost. Don't you agree!
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Old 02-25-2009, 01:10 PM   #7
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Yes, we paid 800 dollars to have it put in our Caravel.
Gail, where did they put the actual tank? Did they drop the belly pan and put it between the frame rails, or is it in the base of a closet?

I've seen gray tanks installed on older Globetrotters; it needed to use a bilge pump to move the shower water into the (higher than the drain) tank.
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Old 02-25-2009, 01:13 PM   #8
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Quote:
Originally Posted by Aage View Post
Considering the purchase of a 25 foot '74 Land Yacht, and I confirmed with the seller that there is no grey water system, and that the sink and shower simply exhaust onto the ground. Not allowed anywhere these days, of course.

Of course, I could use one of those portable tanks, but long term, I know that would be a PITA.

Can anyone tell me if there is space down below to add a grey tank, and if so, a "thumbnail sketch" of what would be required to get it in there, with the proper plumbing connections for the sink and shower?

Everything else about this AS suits me to a "T", hoping it isn't as big a job to do as I suspect it is... :/
Absolutely you can add a gray tank. All the cool people are doing it.

I don't know the specifics of the frame for a '74, but there are many stock tanks you can add below the floor, and you can also have custom tanks fabricated. You have the option of making it fit within the frame rails and thus not hanging down the belly, but in many cases that means your capacity will be lower, compared to a tank that hangs down lower and would provide more capacity, but would hang down below the bellypan.

There is a similar thread on the forum right now with some good discussion, you can check it out here:

http://www.airforums.com/forums/f444...out-48678.html


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Old 02-25-2009, 08:34 PM   #9
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Thanks to all of you, some great advice. It may well be a '73 by the way: the seller went out and had a look at the VIN plate, but couldn't make out the numbers.

In any event, I'm out of town for a couple of weeks now, I'll see if he sold it when I get back.

Again, thanks for your suggestions: this is a great forum!

Aage
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Old 02-25-2009, 08:40 PM   #10
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The VIN is on the title as well.
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Old 03-04-2009, 11:45 AM   #11
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The VIN is on the title as well.
Well, it is titled in Canada, and on the ownership (what we call the title) is has L25D4J1370 as the VIN.

Does that sound like an Airstream VIN to you?
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Old 03-04-2009, 12:05 PM   #12
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Well, it is titled in Canada, and on the ownership (what we call the title) is has L25D4J1370 as the VIN.

Does that sound like an Airstream VIN to you?
L - Land Yacht
25 - Length
D - Rear Bath Double Bed
4 - 1974
J - Jackson Center
1370 - Seq. Serial Number in the 1970's

http://www.airstream.com/docs/pre1980vin.pdf
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Old 03-04-2009, 12:18 PM   #13
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People often make mistakes writing down the numbers onto a registration form or title; mine was wrong.

If its a 74, it should have a grey tank. very small...hardly worthwhile, but it should be there.

let me ask: is the sewer outlet in the rear street-side corner, or does it drop straight down through the floor, coming out of the belly pan in the center of the trailer?
if its the latter...its a 73.
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Old 03-04-2009, 12:20 PM   #14
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Thanks, Vernon. So it is a 1974, and not a '73. I gues there were some 74s that missed out on the gray tank.
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