Northern Industrial Cast Iron Clear Water Pump
The workhorse of the whole “making biodiesel” process is right here: The Northern Industrial Cast Iron Clear Water Pump.

If you follow the design from the fantastic “girlMark” book and the great Biodiesel Community web page, you can get one of these babies to run the whole show. From pumping in the feed oil to pumping out the finished product, as well as mixing and heating, this is it. The best part is you can have it delivered right to your front door.