I was hoping this air pedal would work but it leaked so bad I returned it. There is no information supplied with this block. Which makes it even harder to connect properly. Are you trying to figure out the three entrances/exits? Connectors A, B, or C. I researched this pedal further and found another that worked. If only I had it. I'd try hooking it up again with connector C as the input and A or B as the outputs to see if it leaks like a sieve. So that's what he said. Maybe just this device could work and my rating would be higher. So here is my thought. If you want to try this device. Then try using connector C (i.e. bottom) as input and the other two as outputs. If you are the seller of this device. Please add some information about it so you don't have to guess how to connect it. Good luck, Rachel's father.