In Reply to: re: Castlebar Water posted by John on March 13, 2015 at 08:27:34:
You probably are smelling the residual chlorine that's used to disinfect the water and ensure that you are not drinking bacteria such as E. coli or a range of nasty viruses that make people ill.
On balance it does you a lot of good as otherwise we would all be suffering from various gut maladies. Disinfection of water is one of the major advances made by western civilisation. When was the last case of cholera in Castlebar?
The trick though is to minimise the reaction of the chlorine with organic matter - algae from the lake or peat washed in from the hillsides, etc. Too much and you get THMs - trihalomethanes which I mentioned above. Chloroform being one of them, and these will enhance the smell and also they are not good for you. This is why alum is used to remove the organics before chlorination in order to minimise the level of THMs.
Additional chlorine is added further along the length of the pipes to ensure that the legal limit is maintained at your tap.
If you have been in New York you will realise that Castlebar water is relatively mild in terms of its chlorine smell.
In any case better to filter the water if you are drinking it straight with a carbon filter - to minimise the THM risk - the typical Brita filter jug will do the job. Boiling also removes the chlorine and the THMs.