Response to Temperature of stop-bath, fix and wash

I've always felt that keeping all solutions at the exact same temperature reduces apparent grain size or clumping. No real data though. I run a pot of hot or cold water and set each solution bottle (beaker actually) in it to bump the temperature where I want it. After that I set everything in a water bath at 20 degrees to keep it stable during processing. The tank goes there too, between agitation cycles. Keeping the wash stable was impossible till I got a control valve- highly recommended. Now all I need is a water filter for all that grit...

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