Quote Originally Posted by sanking
As for clearning agent I have found citric acid to be more effective than EDTA, and at $1.65 per pound in pails of 30 lbs from the Chemistry Store it is very inexpensive. Hard to believe that the Kodak Hypo Clearing Agent could be less expensive than that. You can also get sodium citrate at the Chemistry Store.

For 7 x 17 I have been using one tray and wonder how many times you recommend using the 3% citric acid?