Just for giggles here is the first Dubro manual pump. I think I bought this one in the late sixties or the early seventies but it was a far cry than the modern geared manuals we have now just barly usable with effort.
These days I use I think about nine or maybe ten now for the different types of fuels I use Also just added a dubro for pump diesel. For years now its been a simple matter to mount the pump to plastic cans or metal cans in a thick bed of RTV and works quite well.
Even with my turbines the tanks are about 50 ounces and that is about as much as I care to pump with a manual. I do keep one Sullivan electric pump (I think) that I use as a handheld with a flight pack strapped to it. I use this for only two airplanes which are my cross country ships, one 72 ounces and the other 120 ounces which is just a little to much for hand pumping.
John
