Hope everyone had a wonderful Winter...glad to be back with all of you. Here s my question...opened pool yesterday And PH was 7.8 TA was 100...I thought great...then added 8" of water...tested this morning after pool was full and I know have a PH of 6.8 and TA of 70...But then checked the CYA which was at 70 when we winterized last year. Now checked it this morning and the black dot in cylinder never disappeared...I thought maybe I did something wrong so I did it again...still the same. How can that be possible? I am using TF-100 test kit. I am going now to up the PH which I know will raise the TA...Also added 6 182 oz jugs of bleach yesterday...pool was a pond when we opened tadpoles and frogs...the bleach did the job overnight...no more green but test for free chlorine this morning showed 0. Added 6 more 182 oz. jugs and now showing 5 ppm on the small check kit...will check again this evening and add more according to pool calculator....I just don't understand the CYA test not working. Any advice?