Been a lurker for some time and, found great information and discussion. Prior to these test measurements, we added 16 pounds of alum in an effort to clear up the cloudiness. The alum did not settle. While waiting on the alum to settle, algae was observed. Added 3 bottles of black algecide and 9 pounds of shock. Have kept pump on since, save for backwashing usually once a day. Small amounts of foam observed on water's surface (about 10%) as well as effluent when backwashing. I know there are leaves and dirt in the deep end (9') that I cannot see to remove despite my efforts. Water still remains cloudy. Any recommendations?