When you water wash you can see the fuel getting cleaner and the wash water too. I spray dry my fuel up to 170 deg which flashes off the residual water. When I am done I can see through 30" of fuel to the bottom of the processor. I could experiment with dry washing but why mess with something that works. If your fuel won't immediately separate from water when shaken in a jar it still has some glycerol in it . try it with both dry and water washed fuel & let us know which separates faster. Cheers

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