how much water do you have in that iso?
(are you using 70%, 91%,??)
have you read Iso vs ethonal?
why does it matter how much it costs per gal? !?
if you’re winterizing, then the object of the game is to get it all back…
how much solvent are you blowing off to atmosphere every run?
do the math on recovering it instead. the right still will pay for itself almost instantly. especially if it improves the quality of your extracts. or you use it to make your solvent.
at $17.50 a gal, the $500 off the shelf still pictured here might have paid for itself just helping with the 55gal of iso I was dealing with here Purging ethanol with hot plate - #12 by cyclopath