According to Ontario Health Regulations, how often must a wading pool be drained?

The regulation regarding the frequency at which a wading pool must be drained is primarily aimed at ensuring the safety and cleanliness of the water for users, particularly considering the needs of younger children who often use these facilities. Draining the wading pool every four hours helps to manage the water quality effectively, reducing the risk of contamination and the buildup of harmful pathogens.

Regular drainage allows for fresh water to be introduced, which is crucial in maintaining appropriate chemical balances and clarity. This frequency is in line with health standards that promote public safety in aquatic facilities, as well as in maintaining a pleasant swimming environment.

The other options suggest shorter or longer durations that do not align with the health regulations set forth for wading pools, which emphasize a four-hour cycle for optimal water quality management. This structured approach helps operators maintain compliance with health regulations and provide a safe recreational space for patrons.