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  1. P

    Using muriatic acid to clean the flow switch

    Thank, Jason. I don't know but I've done everything else suggested so it's my last attempt before calling in a professional. :-(
  2. P

    Using muriatic acid to clean the flow switch

    How do I use the muriatic acid to clean the flow switch? Do I let it soak, use a toothbrush, both, none of the above?