I buy most all of my stuff from A.T.A.C. Check them out @www.atac.com I installed my aeration unit 2yrs ago and use the rubber membrane diffuser for the best results you can buy. I run it with a 3/4 horse Gast pump. I treat my algae with Cintrine plus liquid and Sidekick. Ialso had the wind here and when it lays down a little I spray. The treatment last a good couple months. I don`t think you can stop the algae bloom by any other way and I also will say you can only try to control it. My pond is 1.25 acres and 13ft deep and that is where the diffuser is.