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Old 05-15-2011, 05:24 PM   #1
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tlsmit1's Avatar
1962 24' Tradewind
Saint Louis , MO
Join Date: Oct 2010
Posts: 106
No black tank in 62 Tradewind

Doing a fairly extensive rehab on a 62 TW. The toilet, which seemed to be original, sat on a ~6-inch high platform on the rear curbside corner. The waste dump valve sat directly beneath the toilet. I had assumed (ha!) that the platform contained a black tank sitting on top of the frame or the plywood floor. But it turns out that there's no tank there--just empty space with a drain pipe going down vertically from the toilet outflow to the waste valve.

I've torn the whole business out now, and I need to figure out a way to put a toilet in that space. As far as I can figure, my options are to put a black tank on the floor with a toilet on top, or to install a Thetford cassette toilet. The cassette route looks simpler, but there doesn't seem to be a lot of experience with it on the forums.

Alternatively, does anybody have experience with putting in a tank above the floor, like this? How did you arrange things so that the weight of the toilet and a person were not borne by the tank? Or can I find a tank that's strong enough?

Other advice? Help?
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Old 05-15-2011, 05:53 PM   #2
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1993 21' Sovereign
Colfax , North Carolina
Join Date: Jun 2003
Posts: 21,254
You would build a plywood frame with 1x2 reinforcement on the corners and bottom/top, mount the tank within, then cut a hole for the toilet to dump into the tank. You would need a tank that had 3 fittings spin welded into it. One threaded for the closet flange of the toilet, one flanged for the dump valve, and one 1 1/2" at the top in the corner for a vent.
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