Ok I ordered the K-1515 kit but I wont be getting it for about a week. I have an above ground 18x52 round pool with a Heyward sand filter that says 50 pounds and a 1 HP Heyward pump. My pH is still reading 7.8 but the chlorine reading is clear so I guess its zero. The water is a little cloudy and there is still a little algae on bottom. What should I do until I get that other test kit?