From the start I've been bucket bailing WVO for my batches and slopping oil all over. I tried to siphon WVO out of a 55Gal drum and that didn't work, I tried pressurizing the drum and nearly burst the drum. I looked at electric pumps but they are a bit too expensive and manual pumps were just that, manual. only down side is it uses a lot of air so a large compressor is mandatory.
http://www.northerntool.com/shop/tools/product_200323350_200323350
http://www.northerntool.com/shop/tools/product_200323350_200323350