Distilled Water?

[torikoos]

The stuff in your kettle (and around steam relief valves on locomotives) is calcium and other minerals from the water that evaporates - that's how distillation works to remove minerals dissolved in the water - works the same for tropical fish tank water, softens it - but you then must add back the metabolically necessary minerals. Do NOT try Tropical fish in your kettle, however ! Bob C.

And the same goes for yourself. destilled , also called demineralised water, is exactly that, it has got barely anything in it. If you drink it, the water will naturally bind itself again with minerals etc in your body, in essence flushing out the stuff that's actually good for you.... so be careful, don't drink it if you can help it, paint with it is absolutely fine though :-)