Viair Portable Compressor uses

While I prefer a compressor (oilless) with a large tank, the Viair compressors can be used if you use a fitting to attach it to the water system. Let the pressure build to 30 - 40 pounds with the water faucets closed, then open. Repeat moving down the water lines, and do it once or twice. Not as fast or easy as a tank compressor, but it works.