Hello all. This is my first spring opening. I just tested my water and p,urged the numbers into the calculator. I am confused. First let me say that the pool is at 66degrees and is clear. Hooray! It is still covered but circulating. We are constructing a deck and I don't want to uncover until it is built. Numbers are FC .5. CC .5 TC 1 TA 50 CH. 100. CYA 20+ ( real confusion here) and PH 7.5. Do I really want to use bleach instead of trichlor to raise chlorine? With cya so low and ph at target, I am not sure what would be the best route here. I know that the few weeks we were running last year, I struggled with low chlorine and CYA levels, but got by ok I guess. Our pool was installed in August and this site was so helpful. Anyone have some guidance for me? Thanks- Melinda