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Old 02-13-2009, 07:16 PM   #1
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1969 21' Globetrotter
Cambridge , Massachusetts
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Tanks: where to buy; how to support?

The floor and belly pan are now off my 1969 Globe Trotter and the time is now to order fresh water and grey water tanks. I would like to mount these below the floor in 24' wide by 61” wide x 5” deep bays between the transverse ribs immediately for and aft of the axle. This leads to 22”x 4” x 58” (plus or minus) tanks. I would be greatful for any advice on where to buy these tanks and how they might be supported.
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Old 02-13-2009, 09:30 PM   #2
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search around...

RV Water Tanks & RV Holding Tanks

http://www.themetalcompany.com/files/tanksection.pdf

And, of course...INCA Tanks.
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Old 02-13-2009, 10:40 PM   #3
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Arvada , Colorado
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Doesn't your trailer already have a fresh water tank fwd of the axle? The type of gray water tank depends on how you plan to dump it, ie do you care if it produces below the belly pan or do do want it contained within the confines of the pan.
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Old 02-14-2009, 01:22 AM   #4
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I just ordered and rec'd a tank from PPL, here is a link to one of their "stock" listed tanks, it's almost the right size (assuming you can handle the tank hanging lower than the bottom of the frame). I ordered a very similar 22x54x8 for about the same price.
RV Holding Tanks - 75 Sizes & Dimensions

These folks have a wide variety of sizes and prices (some are pretty reasonably priced and some are outrages - and I can't quite figure the logic):
Holding Tanks - RV Holding Tanks

Good luck. MarkR
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Old 02-14-2009, 09:18 AM   #5
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I just ordered one of these tanks this week for my gray water. It does not have as much capacity as I would have liked but it was the largest that I could find to fit the available space. Gray water lines tend to leak a little at night so I think I will be fine where there are no sewar hookups. Just kidding.
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Old 05-27-2009, 02:44 PM   #6
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I know it's an old post... I just ordered two 17 gallon abs tanks with the fittings for $250 total, free shipping from: http://www.icontechltd.com

We'll see about the quality in a week or so.
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Old 05-27-2009, 05:22 PM   #7
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Since I have to replace so much frame on my 63 GT,I decided to upgrade the black and add a gray tank.They are 36 gal.,and will hang a little below the frame.They were $50.00 ea.+ $70.00 shipping [sometimes it sucks to live so far south].It will not be an all weather camper anymore but what the heck ,don`t worry about that down here.
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Old 06-11-2009, 11:32 AM   #8
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I finished the tank supports for my two tanks (they hang by the top lip). I made it out of 1/8th x 1 inch angle attached to the frame rails on the outsides and supported by two new crossmembers that I fabbed up. Total weight for the steel is 52 pounds. I removed at least 25 pounds of weight in the old tank support, box, and rear crossmember, and with moving the battery to the front and replacing the old univolt, I probably came out lighter on the rear end than the original setup. Now it's time to prime and paint.
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Old 06-11-2009, 01:27 PM   #9
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I went with Inca Plastics. I took the dimensions of the orginal tanks and also sent them pictures. They made me exact copies of what I had. The price was right at the time, and they were quick about making them and shipping them to my door.

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Old 06-11-2009, 03:12 PM   #10
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You can boult some angle iron under the edges of the tanks and to the frame support two sides The short ones. then run a couple of straps or 3 across the bottom of the tank bolted to the frame also...
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