Ok. The shock is dichlor and the tabs are trichlor, both of which are stabilized which means they add CYA along with the chlorine. As soon as you get your test kit, run a full set of numbers for us to look at. Once we know the CYA reading, we can better advise you on how high to keep the chlorine. If you happen to have a reputable pool store near you, you could ask them to test it for you, but don't buy any stuff they try and sell you. Otherwise, just wait til you get your kit.