Wow I scored today. A friend of mine gave a 1 gallon can of LPD powder. Like the smaller cans there isn't a way to recover once opened. But thats not the problem. I rarely use 5 gallons of developer in a sitting, if I dilute 1:4, so can I dived it into smaller quanities and keep the same developing qualities? I realize that the chemical mixed may not be consistent thru out the smaller versions. Will it be significant enough to make a big difference? He also gave me an 8LB jug of Potassium Ferricyanide. This is surely a lifetime+ supply.