Hello all.
    As a physics and chemistry dunce, I have some questions for some gurus here:

 1) Just how much vacuum is required to extract the excess methanol? I've read 
somewhere that around 25"hg is sufficient. Would a Airco compressor from a car 
create enough vacuum?

2) how much heat is required?

3) is heat/vacuum applied to entire product( biodiesel and glycerine), or only 
the drained off glycerine.

4) With my limited understanding of physics it would seem that if one where to 
suck the contents of a container out, one would have to allow air or some other 
substance back in to fill the void (ie one hole only in an oil can - you 
wouldn't be able to pour it). As this applies to meth recovery, would you open 
a vent on your reactor in order to provide "flow" of the evaporated meth to the 
condensor???

and lastly. . 
 5) on the water heater processors, what is done with the anode?


regards,
Toby 

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