Air plumbing

[panhandler62]

I have a pretty simple setup but I am not sure that I have all the bits to make it function properly.

I have firestone 2600s for the rear, a small tank, a compressor and a "paddle control." The compressor and controller were bought as a set (with a few fittings and some line) from Air Ride Tech. Their diagram doesn't include a tank.

The basic ida that the tank goes between the pump and the panel is obvious but I have a couple posers (well, posers for me at least) left.

1) Where does the waste air go when you push a paddle down?

2) As near as I can work things out.... the pump is activated when you hit "up" on a paddle.: Can I hook this set up up as shown and just count on the tank to be a "buffer" or do I need to conect these circuits to pressure switches of some kind to release air from the tank (which would also sugest a third pressure circuit for the compressor to maintain the tank pressure independent of what I'm doing withhte switches.)

Am I over-thinking this or do I need more stuff?