How the Water Quality Indicator Works in the Mobile App

Overview

The indicator is a single site-wide status that is determined by the poorest chemical reading among all bodies of water. It is displayed on the top-left of the main screen of the Mobile App just under the temperature, and is designed to provide you with a quick, overall state of your chemistry readings. It is not specific to any single body of water.

The status can be one of the following – Good, Okay, Warning, and Unknown.

What the indicator evaluates and how the status is chosen

The Attendant evaluates the current pH and sanitizer quality against your site’s configured targets. The readings are compared to how close or far they are to the target you have set.

The icon color and text is set to the worst status found: any “Warning” anywhere results in “Warning” overall; if there are no “Warning” states but at least one “Okay”, the overall status is “Okay”; only when all evaluated readings are “Good” does the indicator show “Good”.

Another way to say this: If either the Pool or the Spa readings are out of range from your set targets, the status will show “Okay” or “Warning”, even if the other’s readings are “Good”.

Targets are site-specific and may differ by site. Alert limits do not affect the indicator.

How pH quality is determined

  • “Good”: your measured pH is within ±0.1 of the configured pH target. Example: if the target is 7.5, “Good” is about 7.4 to 7.6.
  • “Okay”: within ±0.3 of the target but not within the tighter ±0.1 “Good” range. Example: with a 7.5 target, “Okay” is between 7.2 and 7.4 or between 7.6 and 7.8.
  • “Warning”: outside the ±0.3 “Okay” range.

How sanitizer quality is determined

Sanitizer can be measured as ORP or as Chlorine (Free or Total), depending on the type of probes you have installed and which type defines your target.

If your sanitizer type is ORP:

  • “Good”: within ±50 mV of the ORP target. Example: if the target is 700 mV, “Good” is about 650 to 750 mV.
  • “Okay”: within ±100 mV of target but not within ±50. Example: between 600 and 650mV or between 750 and 800 mV.
  • “Warning”: outside the ±100 mV “Okay” range.

If your sanitizer type is Chlorine (Free or Total):

  • “Good”: within ±0.5 ppm of the chlorine target. Example: if the target is 3.0 ppm, “Good” is about 2.5 to 3.5 ppm.
  • “Okay”: within ±1.0 ppm of target but not within ±0.5. Example: between 2.0 and 2.5ppm or between 3.5 and 4.0 ppm.
  • “Warning”: outside the ±1.0 ppm “Okay” range.

What to do for each state

  • You are on target!
  • No action needed.
  • You are close to your target but possibly at risk.
  • Review your Water Quality graphs to understand which body of water has strayed from target.
  • Test your water soon and make small adjustments if needed, then recheck later the same day.
  • You should take action.
  • Review your Water Quality graphs to understand which body of water has strayed from target.
  • Test your water.
  • Check and adjust your chemistry dispensing settings if needed.
  • Add chemicals manually per product guidance.
  • Verify equipment is running and are filled (pumps, feeders, salt system).
  • Check your sensors and flow.
  • If there are no current readings from your probes (for example, sensors offline, no recent data, or probes not installed), the unknown indicator is shown.
  • Once valid readings are received, the indicator appears.

Updated on August 28, 2025
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