Where is the strongest point of suction in a swimming pool located, which may lead to entrapment?

The main drain is positioned at the lowest point of the pool, making it the strongest point of suction due to its function in circulating water and removing debris. This design helps maintain proper water quality and clarity by ensuring that water is drawn from the pool's floor. However, this strong suction can pose a significant risk of entrapment if a person or object becomes caught in the drain.

Safety protocols, such as the installation of anti-entrapment covers or devices, are crucial in these areas to protect swimmers from potential hazards. While the skimmer opening does also have suction, it is not as powerful as that of the main drain because it primarily pulls water from the surface rather than from the pool's depths. The deep end returns and shallow end outlets contribute to the circulation of water but do not possess the same potential for entrapment since their suction strength is designed to lead water back into the pool rather than draw it from a fixed position.