I also had an issue with hair shedding due to chlorine or actually cholorimide (which is a combo of chlorine and ammonia municipalities now use in water supplies.) What I found to work for my hair loss was borax dissolved in water used instead of shampoo. I had had to stop using commercial shampoo and the borax solution was a great substitute. It also cleared up the rosacea on my forehead.
I also added iodine to my diet, and had started on Ted's borax protocol. Borax helps to neutralize chlorine. It did take a few months for me to really notice a difference. One day I just noticed my hair was fuller. Vit B7(Biotin) is also good for hair loss, added to the iodine and borax protocol.