I have a plastic GAF developing tank, has an adjustable plastic reel. The problem is that film is starting to stick in the reel about half way along, I think the springs behind the ball bearings are starting to go. I bought this tank new in 1980, so after 29 years, I would expect it to need replacing. I have noticed the clear side of the reel is sort of brownish now, it's always been cleaned well, I think perhaps it's discoloured from use over the years or the plastic is starting to decay. I don't think GAF is around anymore, or at least isn't in the photographic business anymore. I either need to find new reels that will fit this tank or replace the tank with something else. The one aspect I have never liked about it, is that you can't do inversion agitation with it. I noticed a couple of different tanks that are available. There is the Paterson System 4, and the AP Universal tanks, I believe that these can be used with a single reel or 2 reels at a time. Anyone know which is the better tank or reel. Wondering about stainless steel, but don't know if I could figure out how to load the reels.