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Old 05-05-2012, 10:26 PM   #1
3 Rivet Member
Anchorage , Alaska
Join Date: Oct 2010
Posts: 168
Dump valve attachment to the black water tank

Refurbishing a 1963 Bambi.

Trying to figure out what old parts are worth keeping, what parts need to be replaced. Looks to me like the PO had problems with leaking. This part seems to be over tourqued, and the opening is full of silicon caulk.

Does anybody know if this part can be purchased ? Seems like it could be rather specialized since it mates to a 1963 above frame, black water tank.

This part also mates to the dump valve, if I get a new dump valve, will that require this part to be replaced as well ?
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Old 05-06-2012, 09:32 PM   #2
4 Rivet Member
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1963 16' Bambi
Stevens Point , Wisconsin
Join Date: Feb 2010
Posts: 318
Hey Ak,
Vintage Airstream Home has directions for making an aluminum plate that will allow you to switch to a Valterra dump valve. Did it on ours, works great. Check VTS, I think I saw an adapter plate listed there
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Old 05-08-2012, 07:15 PM   #3
Rivet Master
1963 19' Globetrotter
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Orion , Illinois
Join Date: Aug 2004
Posts: 663
I think you would be better off removing this mess of a valve part , grinding off the "crud" and fiberglassing a new valve on to the tank. I had an adapter plate made at a machine shop (still have it if anyone is interested) but could not get it to seal to the tank. I then went ahead and did what Andy of Inland sugggests and went with fiberglassing. Put a Valterra valve on as it seems to be what most RV dealers have and a lot less cost than Thetford.
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