Overflows are mandatory in the construction of community pools or for recreational use. These are channels that the San Antonio swimming pool builders build around the horizontal perimeter of the pool. They are a type of gutters that have the function of collecting the surface layer of the water that overflows from the pool, since it is the one that accumulates dirt.
Tree leaves, plants, insects, cosmetic residues, sunscreen, among other contaminants are found in the most superficial layer of the water and it goes to the overflow and from there it is sent to the purification system, so that it no longer returns to the glass and, therefore, does not continue to contaminate the water.
The overflows are part of the filtration system and will help you keep the water clean, as well as save on cleaning and treatment systems since you will easily remove contaminants.