that pipe within a plastic (pvc) is a condenser usually used to remove moisture before processing and to recover some of the methanol after processing. Go to biodiesel info pop as mentioned above and read ALL of Graham Lamings writings,to get a good understanding of the ins and outs of making real bio-diesel. Your engine will love it.

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Red Green "This is only temporary,Unless it works!"

97 E300D 157000 miles
87 300TD ?141k? miles