Technology & Digital Tools Flashcards

Under the Model Aquatic Health Code (MAHC), electronic records of pool water chemistry must be retained for a minimum of:

Answer: 1 year

The MAHC recommends retaining aquatic facility water quality records for a minimum of one year to allow regulatory review and incident investigation.

A pool management software dashboard shows a 'chemical cost per bather' metric increasing month over month. This MOST likely indicates:

Answer: Inefficiency such as over-dosing, sensor drift, or chemical waste

Rising chemical cost per bather (with stable bather counts) indicates the system is using more chemical than the bather load justifies, often caused by sensor drift, over-dosing, or a system malfunction.

When a pool operator uses a smartphone app to perform a remote start of a booster pump, this feature relies on which underlying technology?

Answer: Cloud-connected IoT gateway linking the app to the pool controller

Remote pool control via smartphone apps typically uses a cloud-connected IoT gateway that relays commands over the internet between the app and the local pool controller.

A CPO operator using digital record-keeping software should ensure that automated test entries from a connected controller are flagged differently from manual entries primarily to:

Answer: Maintain data integrity and distinguish sensor-measured values from operator-observed values

Distinguishing automated readings from manual test entries is critical for data integrity and regulatory transparency, since sensor readings and manual tests may differ due to calibration status.

Which digital tool is BEST suited for identifying a slow return-line leak that would be invisible during routine visual inspections?

Answer: Ultrasonic flow meter comparing influent and effluent flow rates

Comparing influent (pump output) and effluent (return to pool) flow rates with ultrasonic flow meters can reveal discrepancies caused by a subsurface plumbing leak.

A pool operator wants to use predictive analytics software to anticipate chlorine demand spikes. The MOST valuable data inputs for this model would be:

Answer: Historical bather count, weather (UV index and temperature), and water temperature data

Chlorine demand is primarily driven by bather load (organic load) and UV index/temperature (chlorine degradation rate), making these the most predictive variables for anticipating demand spikes.

In a pool's digital SCADA (Supervisory Control and Data Acquisition) system, the 'historian' function is MOST useful for:

Answer: Storing time-stamped sensor data for trend analysis and compliance reporting

The historian module in a SCADA system continuously archives time-stamped sensor and control data, enabling operators to analyze trends, reconstruct incidents, and generate compliance reports.