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  1. M

    Near Immediate Loss of Clorine

    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...
  2. M

    Near Immediate Loss of Clorine

    Two days ago I dumped in 6.75 gallons of 11.5% NaCLO to shock my pool and try to clear out the dead stuff so my IC40 SWG could keep up in an 18K gallon pool. With salt, CYA, TA, and pH all in the normal range, the first 6.75 gals didn't even register on the Cl meter, but seemed to clear the...