Diatomaceous earth, a naturally occurring siliceous sedimentary rock, is processed into a fine powder and utilized as a filtration medium in swimming pools. This material, composed of fossilized diatoms, creates a microscopic network that traps particulate matter, clarifying pool water. It is available at major home improvement retailers.
The application of this filtration aid enhances water quality by removing debris that traditional pool filters might not capture. Its use can contribute to reduced chemical consumption and improved swimmer comfort. Diatomaceous earth filters have been employed in pool maintenance for decades, becoming a standard method for achieving optimal water clarity.