Power brake bleeder question(speedibleed)



Alan reviewed a product on this site called speedibleed (I think). It looks like a great item that I'm interested in for my explorer, but Im worried the pressurized air will introduce moisture into the system. I'm a serious DIYer and I heard that professional power bledder tools have a diaphram so no air contacts the fluid. Is that an issue for that product or technique? I hate to use the pedal pump method, I always worry I'm destroying my M/C and I need an unhappy volunteer.