Ok we have a 1961 tradewind with the rear bath,we want to remove the black water tank to repair it the question is how do we remove the 90 degree elbow from the bottom of the tank without breaking it? is it threaded or glued or what it appears to be either aluminum or cast. not sure witch just trying to avoid ruining that tank to keep costs down on the remodel job, any help with this would be great, thanks in advance.
Hmmmm, not sure if your's is the same set-up as our '66. I replaced ours 3 years ago and had to cut a PVC elbow sewer pipe that was glued. It was no issue to glue a new elbow in.
Neil
__________________
Neil and Lynn Holman
FreshAir #12407
I'm afraid you have a bigger problem than the elbow. If you can get the elbow off you still need to disconnect the graywater connectors and remove the big ol' valve on the bottom of the tank before you can lift out the tank. And that'll be way harder than the elbow.
Better start unscrewing that aluminum panel so you can look up in there.
The elbow is the same as was on my '61 Safari. It is aluminum. To remove it you must turn it counterclockwise about a quarter of a turn and then it will drop straight down. The problem you may encounter is that it might be severely corroded and the force needed to turn it may damage something else. There is a big brass valve above it that is screwed to the bottom of the black tank with 4 screws and has a couple of grey water lines attached. My suggestion is to put some Liquid Wrench or other corrosion loosener around the top so it will drain down into the inside of the elbow. Tap it with a hammer and use some heat (but not enough to melt aluminum or start a fire) then unscrew it with a pipe wrench. It has/had a rubber gasket to help prevent leaks.
And what markdoane says..........
Sam
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.