What action is recommended if you suspect a pool's water quality is unsafe due to illness?

Closing the pool immediately and investigating is the recommended action if there is a suspicion that the water quality is unsafe due to illness. This response is crucial for protecting the health and safety of all pool users. When water quality is compromised—perhaps due to contamination with pathogens—there is a significant risk of spreading illness among patrons.

By closing the pool, you prevent further exposure and allow for a thorough investigation, which can include testing the water quality and assessing the situation to determine the source of the problem. Keeping the pool open in such a scenario could lead to an outbreak of illness, potentially impacting many individuals. Prioritizing safety by closing the pool ensures that appropriate measures can be taken to address any issues without risk to public health.