danny:Why stay away from poly, thats weird aren't most processors poly? what are the disadvantages thanks
There are many discussions here on why to stay away from plastic. Mostly for safety as plastic cannot stand heat as well as steel, but it's harder to make quality fuel as plastic tanks cannot be directly heated and lose heat during processing.
For DIY processor advice, please read this site -- it is the definitive resource for processors made of hot water heaters. http://biodieselcommunity.org
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