Take a bath in peace
According to the World Health Organization (WHO), a residual chlorine concentration of ≥0.5 mg/l in the pool water during a minimum of 30 minutes of contact at a pH <8.0 is sufficient to kill enveloped viruses such as coronaviruses. Therefore, an enveloped virus such as Covid-19 would be inactivated even at lower Ct values. The Ct value is the product of the concentration of a disinfectant (e.g. free chlorine) by the contact time with the water being disinfected.
For regulatory reasons and for transparency, we show the results to the users, so that they are fully informed about the quality of the water.