How to clean the water from the lime

First, the most simple and affordable household way to extract from the water the calcium salt — boiling. When heated to 100 degrees lime precipitates. It remains on the walls of the kettle or pan in the form of a white residue, known to all as "scum". The water is softened. However, such ash to wash dishes is difficult. To return the kettle or pot original form, it should be boiled with vinegar or citric acid. Acidic environment dissolves the calcium.

Another easy way to clear water from the lime is filtering. The stores sold a large number of filters. You should look for on the packaging the words "hard water". Filters of this type are filled with a reagent specifically designed for the deposition of hardness salts. Filtration can soften water even better than boiling, however, this method is more costly, because the filter cartridges from time to time will have to change. Moreover, the cartridge life will be shorter, the harder the water.

For the more advanced there is a chemical method of cleaning. In the water you need to add slaked lime. Took it easy, hydrated lime is often sold in hardware stores. Cleaning chemical formula is: Ca(HCO3)2 + Ca(OH)2 = CaCO3↓ + Н2ОГашеная lime, as seen from the formula, while bound in the carbonate and precipitates. The water then must be defended and carefully drain.The main thing in this method is to calculate accurately the amount of added slaked lime: its excess to anything good will not. So before cleaned so the water intended for cooking, it is better to experiment in a special dish. Slaked lime should be added slowly until the acid-alkaline balance (pH) will be approximately equal to 9. This point can be determined by using litmus paper. Knowing the volume of liquid and the amount of added lime, we can derive a ratio, and need to use in the future.