We have a 15x20 above ground pool. Been using BBB method (this is 3rd year). Got a new liner this year, so started with brand new water in May. CANNOT keep chlorine in pool. pH is right at 7.4 almost always. TA = 110. CYA = 40. I put an entire jug of chlorine (8.5% Clorox) in last night because it was looking cloudy. Today? Zero reading. Most days it reads .5 or 1.0 max. What's the deal?
Apologize for anything in my signature- on my mobile and it won't let me view or edit it, and I haven't posted in quite awhile. Thanks in advance for any ideas.