Do you have a well near by that you can plumb into? A venturi built in to the water line would ensure 02 was being injected before the water reached your pond. Or you could have it run over some baffles to aerate it prior to entry as well. You'd just have to regulate the flow so the pump ran continuously. Shutting on and off wouldn't be good for the pump.

Looks like the rain is pushing off to your East.


.10 surface acre pond, 10.5 foot deep. SW LA. The epitome of a mutt pond. BG, LMB, GSF, RES, BH, Warmouth, Longear Sunfish, Gambusia,Mud Minnows, Crappie, and now shiners!!...I subscribe!!