Is anyone using pump circulation? If so then what type of pump is working for you? I have read that the thickened glycerin may be too thick for a centrifugal pump and that some sort of positive displacement pump might be in order. Is this anyones experience? Also has anyone used a venturi for vapor induction during distillation? I was going to use my GL processor for glycerin now I am not so sure. I have scored a nice 20 gallon steel tank so I might just build a dedicated still anyway.

Thanks,
Tony

sure I use an Northerntools 1 inch clear water pump. the glycerin is thin when its hot.

-dkenny