LaMotte ColorQ Pro 7 is my tester of choice.
Before the first liquid Cl add, FC 0.09, TC 0.57, pH 7.2, ALY 69, CH 187, CYA 63. From the SWG discharge, FC and TC were 1.88 & 2.34.
After first 6.75 gals, FC & TC were equal at 2.53, pH 7.3, ALY 95.
Shortly after, FC & TC were down and spread >.5...