My CH has been at 175 from the last couple weeks and I feel pretty good about my test process on this with my TF100. I have some 73% cal-hypo shock bags and wondered if I just use those to shock the pool every few weeks would that be OK vs adding in CH up to move to 200-250 ? The Pool Math app shows effect of 1 pd being a raise of 5.8 so it seems to be a nice slower way to both shock and keep the CH moving up but not going over the 250 range- With my current test results my CSI shows balance so I am thinking no reason to but something I might not need -