I use the Magnum hand crank pump for my gas engines, it was always in my flight box in case my electric pooped out on me. My electric has been with me for way too many years and keeps going? I do see a lot of people having problems with there electric pumps these days, all I can think is they don't make them like they used to. I bought mine used 15 years ago. Don't really know if that means anything or not?? I know for a fact if I operated like John does I would have all hand cranks just like him. I only use one type and flavor of fuel so one pump does me well.