What is That Purple Dust Staining in my Pool?

Purple Dust or Copper Cyanurate is a known industry issue and it is formed when high CYA levels in the pool react with high copper levels, typically over 0.5 ppm of copper. Learn how the purple dust forms and some ways to get rid of it and preventing it from happening. Leslie’s Pool Supplies has been do-it-yourselfers and pool trade professionals trusted partner since 1963, providing quality products and services to make pool care easy and solutions and expertise to do it right. Send us Fan M...