Apex Salinity probe versus refractometer?

Discussion in 'Equipment' started by rygh, Dec 16, 2015.

  1. jonmos75

    jonmos75 Supporting Member

    @rygh do you have float switched in your setup in the sump as I have heard that cheep yellow wired eBay/Amazon float switches and other float switches when they get old they leak voltage into the tank and could cause issues with the conductivity probe....just a thought...
  2. rygh

    rygh Supporting Member

    I tested it by putting tank water in a small vial. No difference.
    So not stray voltage.
  3. jonmos75

    jonmos75 Supporting Member

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