Pool stores are notorious for giving you inaccurate readings even with some so-called fancy computer testing. Hopefully your kit will come soon so you can test your water yourself. If the pool is still cloudy, I'd go ahead and keep the cl high for another day and run the pump 24/7 to filter out the dead algae. I wouldn't use any more tabs in the chlorine feeder until you can verify what your cya reading is when you get your kit. When the kit comes (hopefully tomorrow!) post some readings for us to look at.