ORIGINAL: gaRCfield
Is there a way to adjust these pumps? OP talked about cranking his hand pump for decades before tank would fill. I have the same issue with one of my two pumps. One fills a 14oz ank in 30 cranks, one takes over a hundred. There is some kind of screw behind the label that goes into the pump mechanism but I haven't yet played with it.
I like the hand crank if and when it's working properly.
Mine is one of those that takes well over 100 cranks. Maybe I got a bad one?? It is a hanger 9, and I know that I have to crank it enough times that it really gets annoying, and most times I have to switch hands. I still think I will be going back to electric.....