Within the next month, weather permitting, I hope to have a contractor come in to excavate a small (1/3 acre) pond for me. I'd like to include an aeration system with this project and would like to know the +/- of the various types of compressors on the market today. Some items of interest are initial compressor cost, durability, maintenance, energy consumption, noise levels etc. Any information that can be passed along (including web sites) would be greatly appreciated.

Russ