I'm quite new at this.
We just recently opened our above ground pool. 15' across x 30" deep. (round) I have a 3 way testing kit. The chlorine test shows o. What does a normal level for this need to be? I did a shock treatment on Friday when I opened it. I plan on using bleach instead of the shock treatment you buy. My PH level is 7.8. I have done some reading but just wondering how the chlorine level should read with my test kit. Thanks for any help!