You're right, the CC is virtually the same. I initially was listing all the values, but then decided to separate them and forgot to move that one. The sample did not get hot (it is a mild, cloudy day her in the Chicago area), but there was a bit of airspace. I retested the same sample and got 13.5 for my FC level. I did not retest Ph since it has been steady at 7.7 for the past week. I happen to have a 1/2 gallon of Muriatic Acid so I'll add some and retest later. After testing the sample at 13.5 I also added 2 96 oz. bottles of bleach (walmart was out of the big bottles). I'm going to retest my chlorine in a little while and add more if necessary.