Augie - Do you have a DO meter? Test the DO especially after July 4 or end of July below the lowest float noodles like on Augie's diffuser stand. .
The last time I did testing on an aerator head located up off the bottom the DO was low to none below the depth of the diffuser. This is what I think is happening. As the circulating water moves down the sides of the basin because it is warmer than the deep water below the diffuser bubbles,,,, the returning descending warmer water moves stops moving downward and moves laterally toward the upwelling bubbling action. Thus the deepest water does not get lifted and mixed into the upwelling water. This causes a water stagnation and eventual DO loss below the height of the bubbling diffuser.
If someone has a DO meter and a diffuser located up off the bottom like Augies do some testing and report the results in this thread or another new thread.
Last edited by Bill Cody; 07/05/24 03:02 PM.
