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    New SWG reads no chlorine, no copper, low CYA

    We are new to SWG systems. Our test strips show no copper or chlorine even though the unit says it is working. We set up our 4000 gallon (well water) pool on Sunday and added 100 lb. of salt and 1 lb. of CYA. The SWG is not giving us a low salt warning. (It gave us this warning for the initial...