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    Adjusting CYA upward to slow chlorine loss due to sunlight?

    Hello All, We are about to complete a nearly complete drain to reduce CYA. Yes, we were doing all the wrong things - using pucks! Anyways, I'm hoping to start off with a CYA in the very low end of the recommended 30-50 range. Once we get pool refilled, pH and FC adjusted for the CYA we have...
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    URGENT (to me!): Sealing a leaky Pentair light housing (not the lens/housing seal)

    Background: I've been maintaining my girlfriend's pool and have changed the bulb/gasket on one of her pool lights multiple times. Each time, the end result was the same - water eventually leaked into the housing and GFI did it's job. I have always assumed it was my inability to get a good seal...