> As far as I know, the green chlorine gas you don't smell, but > this change when it's attached to water molecules. > Perhaps the chlorine and water ends up in a connection what I had heard this in a different form but honestly don't know enough about the chemical reactions to understand whether it falls into the urban myth category or not. What I heard (from someone that used to do pool maintenance) was that the chlorine you poured into the pool didn't really smell, just burned. When you could "smell chlorine" in a pool, it meant that it was time to add some more - what you were smelling was the by-product of the chlorine doing its job. No truth content claimed ..... Kris ======================================================================= Kris Boyle Vetronic Systems mailto:kris.boyle@cdott.com Computing Devices Canada (613) 596-7040 a General Dynamics Company =======================================================================