Hi Sue, I am working from the Vertex recommended system that your representative sent me. She recommended your larger compressor with three 1/2 inch lines of 375, 325, and 175 lengths. That amounts to close to $2000 for 1/2 inch line delivered. 3/8inch line is available for less than a dollar a foot delivered in 300 foot rolls. I am comparing costs of just under $2000 to @ $900. If the compressor can handle the job and the water turn over rate is acceptable then I could save $1000. I keep reading on PB that air can be pushed a long way with little cost compared to electricity so I am asking for details.