Another Jobo Expert Drum Question

[Robert Ley]

I recently picked up a used 3010 Expert drum on Ebay for a good price as it has a chip out of the top inside of the drum. As far as I can tell it does not effect the drum. I have used it several times and today after processing some C-41 I noticed that one of the compartments drains by itself when filled with water. It drains fairly quickly until it is about 2/3 down and then seems to stop. I suspect that one or more of the seams is defective.
My question to this august forum is, what if anything should I do about this problem? I have not noticed any dilution to the chemistry or anything bleeding out into the tempering bath, although that may be hard to see. The other four tubes seem to have no leaking problems.
I await your wise council on this vexing problem.

[photographs42]

First, I think you can find the leak by filling a bucket (or any container large enough ) and pushing the drum into it, watching the cell in question. You should be able to see the water come in.

If this works, you should be able to seal the crack with plastic model glue.
Jerome