Hello,

I had my pool opened yesterday by my local pool company. I have a 21,500 gal in ground pool. Yesterday i had a ph of 7.2 so i added borax and this morning it's now 7.4 Last night i also added chlorine to superchlorinate.
As of this morning my chlorine level is 9 TC and 8.5 FC. My ph is 7.4. I didn't test anything else yet. Unfortunately i'm out of my liquid to test my CYA and didn't have any test strips. I'll need to get that. My question is my water is still greenish blue with low visiblity. Should i be keeping my chlorine at superchlorinated levels throughout the day which i believe is right, or should i wait till the night to superchlorinate again. I know it's best to superchlorinate at night because the UV burns up alot of chlorine but i'm not sure i want it to drop during the day especially since my CYA might be low. Thanks.