Chorine does effect most chemical that come in contact with it. For photographic purposes it will reduce the strenght of the chemical it is mixed with.
I use distilled water where possible for mixing chemical to make stock solutions.
For washing film and prints, I put the water through a domestic filter that can be re-newed cheaply. When away from home, I have found bottled drinking water to be satisfactory and when really in isolation, rain water. In Scotland, and other parts of the UK avoid acidic sources. The London area and much of Southern England, the hard water is fine provided a little wetting agent is used for the first and final wash.