Hi Klaus,
This is my budget solution.
I adapted a Paterson tank by setting two small plastic rails taken from a 'flow-guard' plastic contraption that fits on the end of drainpipes.
The rails have a smooth surface to them and I fine-sandpapered the ends, they are flat on one side and bevelled on the other. I carefully epoxied them to the inside of the tank.
I can develop one or two negatives with varying degrees of agitation; without slippage.
This method is easy and has returned excellent results.
Two issues that may be considered minus points; I have to use 800ml of solution (but this is retained after development and used again - so no big deal).
Also, when cleaning the tank I have to be careful that the water I use is not too warm; or it can loosen the epoxy. Although this is easily repairedr...I would just re-attach the rail. It hasn't happened yet so, again...no big deal.
Here's some pics, it's easy - and cheap. And it works a treat.
JP
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