ok, imagine if you will.....
1. heat the oil to 100-125degrees f
2. an old tshirt bunjee corded around a 5gallon bucket.
the bucket has a faucet in the bottom of it.
3. Faucet leaks into a 50micron bag filter that drips into a 55gal drum.
4. 55gal drum has a ballvalve on the bottom which I open to pour WVO into a 10micron bag filter, this leaks into another 5gal bucket.
5. when full, 5 gal bucket gets dumped into another 5gal bucket that once again is above a 55gal drum.... this one filters into a 1micron filter and fills the drum.
sounds like alot of work, but 200gallons has been filtered on a sunday....
it's a little slowish, but the benefits are:
No electricity or pumps needed (aside from the initial heating). Gravity does all the work.
Costs maybe $50 to build the whole deal.
Filter bags are cheap and washable, canister filters jam up in a matter of minutes. Mcmaster-Carr is the best source for cheap filterbags.
I use this same method to pre-filter for biodiesel making, tho I only do steps 1,2,3, and I filter to 1micron after the biodiesel is made.
Drew