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    How pink is pink for FCl?

    So I'm trying to use my Taylor FAS DPD test, and it's just the slightest hint of pink after I put the two scoops of powder in, and then turns clear right away with the first drop of the reagent. I feel like I have put a lot of chlorine in the water the past few nights, surely it can't really be...
  2. V

    Filter guage stuck

    The guage on the sand filter has the needle stuck behind the stop pin. I don't know how this happened, I assume during the winter. Do I just replace the guage?
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    CYA for indoor hot tub?

    How important is CYA for an indoor spa, since there won't be loss of chlorine due to sun exposure? What if the hot tub is kept covered most of the time when not in use?
  4. V

    Just getting started, indeed :)

    Hi all! I've been lurking and reading a lot here lately after having some spa issues. We just recently moved into a house that has a spa and AG pool. The pool was winterized (I'm in southeast VA) and the spa is indoors. Both were previously using the Pristine Blue system, which I believe was...