What is the purpose of an anti-vortex drain cover?

An anti-vortex drain cover is specifically designed to prevent swimmer entrapment by disrupting the vortex formation that can occur in the water above a pool's main drain. Without this cover, a strong vortex can create a suction effect that may entrap swimmers, posing significant safety risks. The design of the anti-vortex cover helps to minimize the chance of a whirlpool forming, ensuring that swimmers can safely use the pool without the danger of being held underwater by strong suction. Therefore, the purpose of the anti-vortex drain cover aligns directly with the essential goal of protecting swimmers and enhancing overall pool safety.