I'm considering switching over to a copper boiler. I've heard all kinds of arguments about alzzheeimmersss. They don't link aluminum to cases of increased risk or do they? No real proof..but the fact that it even comes up worries me.
The short time the water is in contact with the boiler doesn't allow that much time for aluminum to dissolve, but if any is too much for you, then you should find an alternative. I'm not convinced copper is any better. There is also copper toxicity, and if the copper is alloyed, it often contains other metals that may not be good for you either. Aluminum is prevalent in diets, and as far as I know, no corelation has been made between Alzheimer's occurrence and areas with naturally high aluminum in the soil. That to me would/should be easily demonstrated. I did read that if you use highly purified water, like distilled or reverse osmosis, that these purified waters are more mineral hungry and will tend to dissolve even copper pipes, so pure water may be more likely to dissolve nasties it comes in contact with. Sorry, I'm no real help.
