Well over winter bordom I have been reading through rc51's aeration project. He used the EcoPlus 7 which has a max PSI of 5.1 and 7 cfm. I found them online for about $100. My pond is half an acre and about 10 ft deep. I was going to build a diffuser station with two disc's. Would that pump support 3 9inch or should I stick with 2. Also is it better to keep the diffusers close together or seperate them alittle. These were the diffuser I was looking at.
http://www.diffuserexpress.com/fine_bubble_disc.htm
