Which factor is crucial for maintaining a safe environment at the pool?

Regular maintenance and checks of equipment are essential for maintaining a safe environment at the pool. This includes inspecting the pool's filtration system, ensuring lifesaving equipment is in good condition, checking pool chemistry to prevent accidents or health hazards, and making sure that all lanes and structures are secure. Such diligent maintenance helps prevent incidents that could lead to injuries and ensures that safety measures are effective when needed. By keeping the pool area and its equipment in optimal condition, potential hazards can be identified and addressed before they cause harm to swimmers or staff.