I have been looking at pneumatic diaphragm pumps for moving my dirty oil. I have found some on eBay that are pretty affordable. I am wondering is a $250 pump is going to work. That being said, I was looking at an electric sewage pump the other day at Harbor Freight. Plugging the pump into an electrical outlet would be so much more convenient. Would a sewage pump handle the harsh petroleum products in my dirty oil drums? If not, is there an electric alternative that can? I really prefer not to buy two pumps. Is there a way to use one pump for both? Maybe purging the dirty oil before pumping clean into my truck? Any input is appreciated.