air gaps

  1. plankton

    Jebao WiFi 4 channel doser and air gaps

    I test alk once per week, thank god, and noticed even though I was adjusting up the amount I’d dose alk wasn’t increasing in proportion. I noticed air gaps would purge then find gaps again next morning. Replaced lines, lowered doser and still air gaps. I just added check valves and will see if...
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