What is the minimum distance pool inlets should be located below the water line?

The minimum distance that pool inlets should be located below the water line is essential for proper circulation and water quality management. The correct answer reflects the requirement of 10 to 15 inches as it ensures that the water being drawn into the pool's circulation system is effectively mixed and not subject to surface debris, oils, or contaminants, which accumulate on the water's surface.

Inlets positioned too high might lead to insufficient water flow, impacting the efficiency of the filtration system and creating dead spots in the pool where water isn't circulated effectively. Additionally, the established distance helps with maintaining an adequate transition between the pool's surface layer and the deeper layers, promoting better overall water quality and comfort for swimmers. This consideration plays a key role in promoting safety and health standards in public and private swimming facilities.