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  1. M

    Biofilm forms after circ pump fails for few days

    Newbie here and glad I found this forum. We have new spa (less than 1 month old) and had been using the Leisure Time Bromine System that came with it. While I was gone the, the 24 hr circ pump failed to operate for a few days and I returned to a green slimy hot tub. Since then, we've added...