Pond Boss Forums GENERAL QUESTIONS Muddy water New Tech Bio

My first guess would be a thermocline, but I guess a spring would also be possible. This pond does lose some depth during the heat of summer when things get dry, but I suppose it could be a spring that just doesn't produce enough to keep up with evaporation. But, if it's not big enough to keep up with evaporation, I don't know that it would be enough to create that much of a cold zone either. Just an amateur guess on that point though.