This is a used unit. Advertised for $500. I figure if I need to rebuild it, it's still a deal. What do you think? Surface area of the pond is .29 acres with a max depth of 10'. I figure I can get away with a double diffuser. Plan to run 1" pvc 150' to the pond then 5/8" weighted tubing to the diffuser. Checked the specs, free air flow is 10cfm @ 10psig.
Last edited by LarryHale; 01/27/15 08:17 PM.