cleancloths,

In the pool industry, "liquid chlorine" is any liquid source of hypochlorite so that includes both bleach and chlorinating liquid. It's true that it is not technically "liquid chlorine", but that's what people call it in this industry, as far as I can tell. I sometimes even write "liquid chlorine" instead of always saying "bleach or chlorinating liquid". I suppose an accurate compromise would be "a liquid source of chlorine".

Richard