FWIW in my newbie opinion, the one thing that is missing in this discussion is efficiency of the diffuser to convert air CFM to water flow. There are lots of diffusers out there and all convert air flow to water flow a little differently. I would remember what Snrub said, it's all about moving the water from the bottom to the top, not just compressor air flow and the capacity of the diffuser to take it.

Last edited by Bill D.; 01/11/16 10:11 PM. Reason: Clarification
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