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    Pool light niche replacement/repair

    I have an old Frost light niche that I need to replace or rebuild. My local supplier says that there are no current niches as big as the old Frost niche. My problem is that this is for a fiberglass walled pool and I think I would need a niche at least as big as the current niche so that it...
  2. H

    Trichlor tabs raise CYA too much... but what else?

    First, Trichlor won't necessarily raise your CYA to much. If you are in a climate where you have to winterize the pool, you are probably taking 2-3 feet of water out of the pool to winterize and probably another 2-3 feet in the spring when you open. In a 6 month swimming...