Our floor pump was said to work on both kinds of valves, and it actually has two separate plug holes - one for each type of valve. We previously had a floor pump for Schraeder valves and we used adapters. The adapters are o.k. in a pinch, but personally I have much better luck keeping air in the tires (ie., not deflating when you disconnect the pump) with the pump that doesn't need an adapter.

Deb