Where to get air in Madison?

[divegeek]

The way I understand this issue is that the dive shop will send the tank out for the hydro, but the hydro place doesn't have any trained inspectors to do the VIP. I think the reason the shops charge for the VIP after the hydro at one shop I go to, is that they change the tank neck and valve o-rings, and also inspect the dip tube. I had one of the old US divers plastic tubes that had shattered inside my tank, and they replaced it with a stainless one for free. I'm not sure the hydro folks would be aware of how to do that, or even how to get those parts. Plus, at another shop my tank came back from the hydro place still wet inside.