First full summer of ownership. 24' above ground. Test water weekly at pool store. Pretty good. Little adjustments here and there. For nearly the last 2 weeks the water has been getting slightly cloudy and Ive been fighting some funk on the bottom of the pool. Added some clarifier. Next day vacumed just through filter. Next day funk on the bottom again. Vacummed to waste to below skimmer then filled again.Looked like maybe I had turned the corner. Starting to look better and not as much funk on the bottom. 2 days later all the funk is back. I dont know what to do. Water test seem to be really good. Pool store isn't trying to sell me anything so it must be good. I have been vacuuming nearly everyday either through the filter or to waste. Then the funk again. Cant figure it out. Any advice would be appreciated. Thanks