Why did my bleach leave?

[waterbear]

Your numbers have been relatively consistant. I would trust them over the pool store. I work in one and have seen very bad test results done in pool stores! You pH is fine at 7.6 but you really can't test pH accurately until your chlorine levels drop below about 10 ppm! If you chlorine held overnight I would let the levels drop and then retest. BYW, if you look on the lid of your taylor kit on the bottom of the chlorine test section it it will tell you how to dilute for testintg high chlorine levels....there are dilution markings right on the comparator for 1:1 and 1:4 dilutions. You don't need the shotglass!