I think i figured out part of my problem! This spring where spring creek enters into pond i hand dug a ditch. Width of 4 ft and 3 ft deep by 25 long, I'n thought of having a place for silt to settle before it entered pond. I then put straw bales along shore to prevent erosion , well they are decomposing now, they feel about 100' and around them, so i think it's jacking up temp of cooler water before it enters pond. Next year shld be different .
