Do you have to treat your swimming pool with anything if someone lice was in it swimming?

The presence of a single louse in a swimming pool does not pose a significant risk to other swimmers. Lice are parasites that require close human contact to spread. They cannot survive for long periods in water and are not known to transmit diseases through water contamination.

However, maintaining proper hygiene and sanitation practices is always important for swimming pools to prevent the spread of various illnesses and infections. Regular cleaning, disinfection with chlorine or other approved sanitizers, and monitoring of water quality help ensure the safety and health of swimmers.