Reverse osmosis for drinking water - does that make sense?

Reverse osmosis plants are being promoted more and more in the last few years in order to clean and qualitatively improve their own drinking water. Whether or not reverse osmosis plants actually make sense, and what one should probably think about, will be discussed here.

Sense of water purification

Tap water can sometimes be contaminated with traces of substances. In health terms, this is harmless in most cases, since the Drinking Water Ordinance provides for strict controls and very tight limits.

A real "cleaning needs" of tap water is therefore not. On the other hand, additional contamination may also occur due to the line, or even a contamination with bacteria, which in some cases can be dangerous.

Reverse osmosis systems also offer protection against unknown or unverified substances. So only a few years ago, hormones were detected in the water, whose long-term effect is also scientifically unknown. The hormone load is classified as harmless.

Waste of resources through osmosis technology

The osmotic pressure of the tap water in a reverse osmosis system must be exceeded in any case - that is, the system must work in any case with more than 3 bar pressure. This requires a lot of power and is not necessarily ecological just for the quality improvement of actually clean drinking water.

Most of all, however, the water consumption of such plant to book. Most plants require between 3 and 10 liters of drinking water to produce one liter of clean water.

If the system is operated for the whole house, then the total water consumption increases up to tenfold. This also causes ten times the cost of water.

For undercounter systems, however, only the consumption of drinking water must actually be taken into account. For the softening of tap water, softener systems based on ion exchangers are certainly more useful and economical.

Health effect of the water

Especially pure water is actually not so favorable for our organism because it lacks the natural mineralization. Osmosis water deprives the body of important minerals when drinking - since most people already have a serious mineral deficiency due to poor nutrition, this can not necessarily be considered positive.

Tips & Tricks

Before buying a system, advantages and disadvantages should be carefully considered. The quality of the system should always be the main criterion, as well as the water consumption.

Video Board: How does reverse osmosis work?