I'm just learning how to treat my pool. Leslie's sold me Chlor Brite Pool Shock which made my CYA way too high because my pool already has chorine tabs. I have the correct non-chlorine pool shock now (Fresh and Clear) but I don't want this 150.00 bucket of chlorinated shock to go to waste, so I'm hoping I can use it without increasing my CyA. If I can use it in place of chlorine tabs do you think a half cup is a good place to start for a small 7500 gallon pool when there's no chlorine tabs in use at the time?