I don't understand the knock on Dektol. It yields great results and is very inexpensive. I mix a gallon of stock solution and then dilute per instructions 1:2 when ready to use (12 oz stock to 24 oz water). Often I re-use the diluted solution over two or three printing sessions, say 30 to 40 8 x 10's total within 5 days. Then it gets tossed. I do not see any degradation in performance and I suspect it could be stretched much longer. I just spent about $.70 since I get 10 working strength loads out of a gallon of stock. That is about the cost of one piece of 8 x 10 paper! No need to make it last forever.