What is required of a manager if a swimming pool is located on the premises when a resident uses the pool?

The requirement for a manager when a swimming pool is located on the premises focuses on ensuring the safety and health of residents who use the facility. Testing the swimming pool's water quality is crucial because it helps to maintain safe and sanitary swimming conditions. Proper chemical balance and cleanliness are vital to prevent health hazards such as infections or illnesses that can arise from contaminated water. Regular testing for factors like pH levels, chlorine concentration, and other potential contaminants ensures that the swimming pool adheres to health regulations and provides a safe environment for residents.

The other responsibilities, while important, do not specifically address the primary requirement stated in the question. Keeping the pool clean and checking for a lifeguard are certainly valuable practices for pool safety and enjoyment, but they do not encompass the regulatory health requirements associated with water quality testing. Similarly, while providing flotation devices can enhance safety, it is not a mandated requirement for pool safety in the context presented. Therefore, ensuring the water quality is the most critical responsibility for a manager related to resident safety in the use of a swimming pool.