Why Test Total Chlorine?
Found you site through the LaMotte website. I recently bought a Pool Manager DPD test kit (model DT-3, Code 7011). I am a new in ground pool owner in the south of France. I am OK with the pH test (5 drops of indicator) and the free Chlorine test (add tablet 1 to fresh water), but it is unclear whether the total chlorine tablet goes in the same water as the free chlorine test (i.e. sequential) or whether I need to get some fresh water from the pool. I am aiming for a target of 1.5/2.0 Free Chlorine and 7.4 pH, are there any limits for the Total Chlorine and why am I doing this test at all? Best regards. Edward M., France, 8/27/2005 You should use the same water sample. The Free Chlorine test measures the active sanitizer. Total Chlorine is Free Chlorine plus Combined Chlorine. Ideally, you want the Total Chlorine reading to be less than 0.3 PPM higher than the Free Chlorine reading. Otherwise, a shock treatment may be necessary. Combined chlorines are irritating and odorous and you want
