I cant tell you what the new fountain does for total DO saturation, because I dont have a DO meter. I can say that even with the pump submerged only two feet deep, letting it run 12 hours, when I checked temps of the morning there was still very little variance on temp from top to bottom. I have reduced run time on the fountain now to 6 hours of the morning (4a-10a) and there is a significant change in temp by late afternoon. The surface gets pretty warm, but the shading provided by the blue green dye allows some cooling at depth. Visibility is now up to 30+ inches, even with dye. Morning ph is 7.5, but it gets close to 9 by late afternoon.

.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!!