Just looking for options, though I have too many....
Have 3 100 gal tanks steel, 2 100 gal tanks steel full wmo, 4 45 gall olive barrels full wvo, 60L centrifuge tank, 50L SS tank, 50 Gal poly tank, 250 gallon tote, 35 gal hho water heater. So I need a couple of pumps that can transfer, not make a mess and be reliable.
I will think about gravity when I can but ceiling is only 9', finished, . I have a shop oil furnace as well.
LM