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  1. W

    what is the best vacuum pump for BHO purging?

    The robinair is shitty loses its power so fast go American made jb or yellowjacket and youll be set for a good long time i cook all my oils for nearly 3 days at 111.5 first day to 114.5 last day under a 28.5 pull i run my pump for 4 hours the first purge then burp re pull it and turn her off...
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