Thoroughly confused.
1. We WANT to disrupt the thermocline so that oxygen can enter the relatively anoxic waters below the thermocline. but...
2. we WANT a temperature refuge even if the O2 levels might be lower so we don't want to blend water to the point of no temperature difference.
3. We DON'T WANT quick water turnover or too much turnover as then we have superheated water
Is it possible to have a temperature refuge AND prevent the water that is cooler and nearer the bottom be too low in oxygen?
Also for those in northern ponds (wisconsin) why would you run diffuser 24/7 in spring and fall? I can see a shallow water diffuser in winter for warm water refuge and avoid winter kill, I can see additional use in summer to keep up with turning water and maintaining oxygen, but in cool weather in spring and fall the water doesn't have a thermocline and carries sufficient oxygen by nature of increased dissolved O2 capacities in cool water. So why run the aerator 24/7 from say ice out to Mid May or from Sept till ice forms?