Use distilled water and a metal (not plastic) ice tray. Remove the ice before it fully solidifies, since freezing is also a purification process, so most of the impurities are in the last water that freezes. Don't drink the last few drops of water in your glass. Use a chambered glass, so the ice doesn't come in direct contact with the water you drink. Or just don't worry about the sediment.
2007-10-24 15:23:34
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answer #1
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answered by Frank N 7
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You are getting calcium and magnesium precipitating out when you freeze the water. This always happens with hard water. While harmless, it is unsightly and can affect the taste of the water. In addition, the minerals also reduce sudsing action in soaps.
Most water purifiers only get rid of organic compounds, not dissolved minerals. There are only three ways of getting rid of calcium and magnesium:
- distilling it. If you boil hard water, the minerals stay in the water, but if you catch the steam and condense it, the steam will have very little mineral in it. Boiling water actually makes it worse, since the minerals become more concentrated as water evaporates: it's the _steam_ you're after. This makes water that is almost completely pure.
- softening it. Water softeners use a special resin. When hard water passes over it, the calcium and magnesium stick to the resin, but they get replaced with sodium. While sodium is another mineral, it does NOT precipitate when water freezes. Likewise, it does NOT affect the ability of soaps to suds. This is the easiest method to remove hard minerals, but since it replaces it with sodium, in areas with VERY hard water, the water can actually taste salty. It is rarely a health problem, but could be, in theory, for people with high blood pressure. This method is best used for softening tap water used for cleaning in areas with hard water.
- filtering it. If you get a filter with VERY small holes the right size, just big enough to let water through but not calcium or magnesium, you can actually remove the minerals and get very pure water. This is how reverse-osmosis filters work. They are much easier to use than distilling water, but produce water that is almost as pure.
- Bottled water is often distilled or purified through reverse osmosis. However, most people think completely pure water tastes funny or "off," and humans prefer a small amount of minerals in their water for better taste, so a small amount of minerals is added back in to make "drinking" water. The amount added back in varies by brand, but water sold as "distilled" or "purified" should have no minerals compared to "drinking" water.
Most water "purifiers" sold (especially by Brita and Pur) do NOT remove hard minerals, only organic compounds. Using distilled or reverse-osmosis water, or even bottled water, will keep ice cubes from precipitating hard minerals. "Drinking" water may or may not, depending on the brand.
2007-10-24 12:19:19
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answer #2
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answered by Anonymous
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Say what?
I would look into water filtration, possibly a water softener. Where do you live? Rural Mexico?
2007-10-24 11:58:52
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answer #3
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answered by jaymonic77 2
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