A substance used in swimming pool maintenance, it serves to gather microscopic particles suspended in the water, enabling the filter to remove them more effectively. An example includes its use after a heavy storm, when fine silt and debris cloud the water; the product coagulates these particles, forming larger clumps that are then easily trapped by the filtration system.
Its importance lies in enhancing water clarity and improving overall pool hygiene. By removing tiny particles that cause cloudiness, it ensures a more visually appealing and sanitary swimming environment. Historically, such products have evolved from simple alum solutions to more sophisticated polymer-based formulas, offering improved efficacy and ease of use.