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  1. M

    Is it ok to increase suction so cleaner will climb walls?

    I have a Pool Shark automatic cleaner which is fine and I have also borrowed a friend's Hayward Pool Vac Ultra. Both will climb the walls of my plunge pool all the way to the top but only if I increase the suction above the recommended maximum according to the Pool Shark's supplied flow gauge...
  2. M

    Black Algae - black pebbles

    I discovered about a dozen black dots/domes on the weekend around the quarter the size of a fingernail which were blending in very nicely with my black pebbles. About half were on my top step. Because I nearly always swim at night, I hadn't noticed them. I scrubbed all the ones I could find...