Post
Sun Oct 16, 2005 8:30 pm
All they do is filter out all the magnesium, flouride, chlorine etc out of the water removing the hardness, thus making it purer.
The harder the water, the more impurities, this is why your kettle etc collects scale, more so with the hardness of the water in your area, because the water boils off leaving these impurities behind.
HTese impurities are what mark the paint.
true dionised water is boiled, the condesed into sterile tanks and it is then checked for any ionisation (should be free if condensed properly).
ionisation is where the water molecule has a different static charge than it is supposed to (i.e.not balenced) and will be either positive or negative, thus causing reactions and/or attracting other chemicals.
we use stacks of it at work for the sterilised cleaning storage bottles and tanks beofre they are filled with electrolyte so that they do not become contaminated from the water.
however those filters are good enough for most applications, especially car washing etc. tehy are basically just a water softener, which can be bough to plumb into your house beofre the supply enters your house so it does not colg/damage any tof the pipes in your house as they clog up with scale, they are quite popular in the states i am led to believe, although i do believe they are available over here.
so there's the chemistry lesson for today