Make lime-free water

Some technical equipment, irons and aquariums need lime-free water. How to make lime-free water cheaply and easily, or where to get it, is explained here.

Lime in the water

Lime consists of dissolved calcium and magnesium ions in the water. These two substances apply, in addition to strontium, which is practically present only in the tiniest traces, as a hardener.

High lime content in the water also means high water hardness. Lime-free water therefore has a water hardness of zero.

demineralization

In a demineralization of water at the same time the hardness in the water are removed. The result is not only fully demineralized, demineralized water, but also completely soft water.

Lime-free water is therefore also:

  • distilled water
  • Osmosis water and
  • RE water or so-called iron or battery water

Both in the distillation process and in the reverse osmosis system, water is completely demineralized, thereby also the hardness formers are completely removed.

It is quite easy to distill water yourself, all you need is a saucepan with a lid and a glass bowl. You can also get distilled water for free from the in-house tumble dryer.

Of course, lime-free water is also rainwater, for example. It rises as distilled water by evaporation, condenses and rains down to the ground again. As long as it has no contact with natural soil, it has no way to absorb lime and therefore remains soft.

Technical production

Technically, the production of lime-free water is only possible via ion exchanger systems. In these plants, the calcium and magnesium ions in the water are replaced by sodium ions.

This method is also used in all softener systems. In addition, the water softening in the dishwasher works on exactly the same principle.

But when it comes to using soft water, even rainwater is the easiest and best way to get completely lime-free water. It makes the least effort.

Tips & Tricks

If you make distilled water yourself, use existing distilled water or use the water from the reverse osmosis system, you automatically have lime-free water.

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