I agree it’s probably not the best time of year to do this, but my water stays relatively cool, because I pump water from the bottom far side up to a 6’ deep X 12 long x 15 wide lined bog system that then flows down a series of waterfalls and through vegetation to help clean the water. I also have a fountain in the middle that pulls from about 2.5’ below, so I am constantly mixing the water levels in ever height so avoid any problems with O2 deficiency in the water column. Only real reason to do it was the water is too murky to allow any plant growth below the surface and I want to establish a self sustainable ecosystem that only runs the waterfall and foundation as backups, and not as a primary source of O2. Another issue I have is stability on the hill above the pond. I finally got grass to grow but the last storm all the new seedlings are either washed into the pond or buried under excess soil erosion. It’s always something isn’t it boys! lol you guys have been a lifesaver though and being able to go read past treads has really improved my pond game, and it’s official I’m addicted! Haha