Alum-CyA ‘Tech Bulletin’ Response
In mid-October of 2020, Robert W Lowry released an Alum-CyA 'Tech Bulletin' titled 'Does Alum Remove CyA?' This appeared again in the Service Industry News publication several weeks later. His…
Copper Stains in Swimming Pools
Blue, Green, Black, Gray, and Purple! Photo credit: CDC, 1964, Puerto Rican public health weighing out a measure of copper sulfate. They would then apply this waterway to control…
