George, I agree with your assement of your problem and Todd's fix. But, it all depends on the water depth. Surface agitation/aeration works very well in low water/shallow water conditions that you describe. In deeper BOW's? Without a tube to pull water from the deeper portion of the pond, not so much for the deeper water areas. Plus pumping air is more cost effective than pumping water in regards to energy costs. If you didn't have power at your pond, you cannot run the surface agitator/aerator unless you are well versed in solar like Brian is experimenting with.

Each system has it's place, and no single system is the best for both worlds. If you really want to have your bases covered, run both - bottom diffusion systems and a surface agitator/aeration system.


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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).