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How do you agitate w/Patterson - Black & White Practice
2008年2月25日 · I'm new to the Patterson tank too and was floundering around trying to find a good, repeatable method of agitation with the tank and finally got the best results by doing what the directions called for which was to twist the twirler 4 times after pouring in the developer and then slowly inverting the tank 4 times every minute afterwords and ...