Well, we need those results to be more specific.

Get your pH in line (7.2-7.6) if it needs adjusting. 7.2-7.4 is better for now.

Raise your FC to shock level according to the FC/CYA on the Best Guess Chart: http://www.poolsolutions.com/gd/best...e-chart.html#a

Keep it at that level by checking the FC and making chlorine additions as often as you are able.

Then when it seems to be holding fairly well, do an overnight test on your pool. After sunset, make your last addition of the evening and retest your FC an hour or so later. Then, in the morning within an hour of sunrise, check the FC again. If you lose more than 1ppm, then you should keep your FC at shock level.

When you pass the overnight test, your CC is 0.5 or less, and your water is clear, then keep the FC high for one more day just to make sure.

Then let the FC fall to your maintenance range, but towards the high side of it so that you don't let the FC get below your minimum.