Best plan is to put the compressor in some sort of shed, barn or garage. This provides very good protection and plenty of free air flow and you don't have to have the pump exposed to weather conditions of hot sun and moisture of fog, dew, rain, snow. You can easily put compressor 400ft or more from the diffuser depending on size or diameter of underground air line. The further it is from 400ft the more you need to increase dia of airline. Moisture is the 2nd negative to reduce pump life span. Keep pump dry as possible.
Thanks Bill. I never thought of this. I have a barn that is less than 300ft from where the middle of the pond will be, so I could probably do it.
Are there any rules/tricks to running air hose underground? I suppose I could hold off on the expensive, weighted stuff until it got to the pond's edge. Is there a recommended depth? Will cold affect it?
Thanks again.