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    What is this on my plaster in drained pool?

    First time poster - long time reader. I drained my pool to acid wash it. I know this isn't really advised but I was trying to get rid of black algae and just couldn't maintain a SLAM long enough to win. Pool is drained and I've cleaned it with both acid and bleach. This is what the side of my...
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    Pentair MiniMax NT Won't start/work

    I have a Pentair MiniMax NT that won't work. The control board flashes between two displays. 1. all these lights are on: Power, Pressure, Service, Remote, Pool, Spa, and Off. the display reads: 88.8 2. These lights are on: Power and Pressure. the display reads --- the fan never comes...