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Thread: Replace ATK Optical Switches With Float Switch

  1. #1
    Frequent Visitor bigjim's Avatar
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    Replace ATK Optical Switches With Float Switch

    The optical switches that turn my top off pmup on and off have been a constant PITA since I got my ATK. What would it take to replace the optical switches with a float switch? I would leave everything else as is. I just want something I can rely on to turn the top off on and off when the water level in my sump gets too low or too high that doesn't require constant cleaning to keep working.

  2. #2
    Frequent Contributor zombie's Avatar
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    You need to buy or DIY a breakout box, but as many floats as you want and something to mount the floats with. I'm a fan of the marine depot switches because their mount is very good.

    I would keep the optical sensors for the ATK in place and just change your logic around a bit so it turns on if either the ATK low or the float low triggers and the high float and the ATK high both act as failsafes.

    Sent from my SM-G965U using Tapatalk

  3. #3
    Frequent Visitor bigjim's Avatar
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    Thanks. I'll look into the switches from MD and possibly doubling them up with the OS.

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