Interesting article I ran across on the net.
http://www.mcgrayel.com/files/Phosphate ... _Myths.pdf
Author concludes largest source of phosphates are from pool chemicals like algecides, scale and stain removers, not environmental (fertizlier or dirt blown into the pool).
http://www.mcgrayel.com/files/Phosphate ... _Myths.pdf
Author concludes largest source of phosphates are from pool chemicals like algecides, scale and stain removers, not environmental (fertizlier or dirt blown into the pool).