It is claimed by some of the UV sanitizer manufacturers that using them, one can safely reduce chlorine levels in a residential pool to 0.5ppm

Here is one person's account of his setup of a system in his residential pool to do that:

http:/\/\mainframereview. com/\what-i-learned-about-pool-spa-ultraviolet-uv-filter-systems/\

Has anyone else here tried that?