ok I took my water sample in to a local pool place... They read my free chlorine at 3.5 and my total chlorine of 4.4 so advised I shocked to remove the combined chlorine... They are telling me to put 15 bags of their "Burnout 35" in it.. They pointed me to the display and they were almost $8.00 each.. needless to say I bought none. I understand the bleach in the pool to keep free chlorine out but how do I remove/lower the combined chlorine ?
Also they read my CYA at 151 and they told me as long as it is under 200 it is fine. I have turned off my chlorinator until I figure all this stuff out and going to purchase all the bleach.