WVO Settling & BioDiesel Processing

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WVO settling tanks. WVO goes in the top via a 4" hole. I usually strain larger items out in 5 gallon buckets with a paint sstrainer, then again when it goes into the barrels with pantyhose or a sock on the funnel. Water and silt/sludge settles to the bottom and can be drained off. Oil is drained from the right-hand drain which is pulling from above the line via a 6" pipe extension internal to the barrel.
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Wash tank. The lid has fine-mist nozzles installed. The lower drain (left) has a siphoning water drain that goes up to a vacuum breaking tube and then outside to another drain barrel.
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Closeup of WVO settling tanks. The line is the level of the higher drain.
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Closeup of WVO settling tanks. The line is the level of the higher drain.
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Filtering tanks. I pump finished/washed BioDiesel into the top tank from the wash tank via the processor's pump. I let it settle for at least a week. Lower side bung has a sight tube going up so I can monitor the level of oil in the top barrel. Just downstream from the sight tube is a sediment/water drain. Further downstream is a ball valve then a filter. The bottom barrel has a 12v pump with inline filter to pump BD back up to the top barel, or out to the final storage barrel (on the hand truck) The funnel holds a 5/1 filter sock for final filtering.
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Appleseed processor. Basically an old water heater with pump and various ball-valve openings to move oil (and a vent from the top).