This is what I do.
Go to a tire shop, oil change place and get a valve stem with the bolt and the seal on it and everything. Drill a hole in a PVC cap just big enough to stick the valve stem through it and seal it with the bolt that is on it...Your going to need a hose thread to pipe thread adapter, most places have those. Then all you do is thread the cap on the spigot in the basement, open the valve, open the control valve, turn the air on and away you go!