You can buy it here: MAGNESOL R60 and D-Sol (D60) at FRYERPOWER HOME Cost is $92/50lbs. It adds $.12/ gallon to the cost.I started with water wash. After a couple of emulsions, I started looking for a better way. That way was Magnesol! I'd never go back..........I've had 6 samples tested, and everyone has come back EXCEDDING ASTM specs. It's faster, 0 waste water, NO drying involved, and the bio has a much longer shelf life. "Air" drying can cause oxidation, which promotes polymerization of bio. That can shorten the shelf life of biodiesel.After using it for 5 years, I can honestly say I would still use it if it cost me 3 times what it does.