How an overflow pool works: An Overview

You may have passed a reflecting pool and seen this amazing effect: the water’s surface looks like a flat sheet of glass or appears to be perfectly contained without walls.

This effect is created by a perimeter overflow, a style used in many modern swimming pool designs in which the water overflows its edges and flows into a hidden slot or catch basin where it is then recycled back into the pool. This function is similar to an infinity-edge pool, but with a perimeter overflow, the water overflows on all four sides.