Drinking water homemade: Water treatment at home
Drinking water is the most important food for humans and a basic requirement for survival for well-being and vitality. While in Germany and other advanced countries, water is easily available and at moderate prices, it looks less good in other countries. But also in the Federal Republic one pays meanwhile more and more for the water. The topic of water treatment at home is becoming increasingly important.
How healthy is our drinking water?
Every German consumes an average of 128 liters of drinking water a day . Amazing that we use only about five liters of it for cooking and drinking. Nevertheless, every human being must be able to rely on the quality of the water. As a rule, this is also easily possible, since pipes and pipes are checked daily and the pollutant content and the bacterial contamination monitored continuously. In most cases, the problem does not come from the water suppliers either, since they are not responsible for what happens in the home cellar. Old, dirty pipes and pipes can contaminate the water with heavy metals.
Possible dangers in drinking water
The so-called stagnation water , ie water that has been in the pipes for several hours. Under certain circumstances pollutants such as copper, which is the most commonly used in domestic installations, can accumulate here. Although copper is a vital trace element, it can be dangerous in high doses, especially for infants and babies. Copper uptake for a long time can cause severe liver damage. Also, new copper pipes can be problematic, since no protective layer has formed here. If the water has a high acid value, the copper can dissolve in the water. The still tolerable limit value is two milligrams per liter.
In addition to lines, valves can also be the cause of heavy metal contamination in drinking water. Water that accumulates in chrome-plated faucets can have high concentrations of nickel. For one-sixth of the population, nickel leads to allergic reactions. The cause is intestinal complaints and, in the worst case, even brain damage. However, such high concentrations are the exception. Incidentally, the limit value for nickel is 20 micrograms per liter.
Tips for good water quality
- Avoid stagnant water : Drinking water should always travel as fast as possible from the water supplier to its own tap. If the water does not flow for a long time, & quot; stagnates & quot; it. This stagnation can be compared to an expired expiry date for food. According to the Federal Environmental Agency, drinking water that has stagnated for more than four hours should not be used to prepare drinks or food. Fresh water can be recognized by the fact that it gets cooler from the line.
- Planning & Maintenance : In new buildings, installations that are only used later should not be filled with water. Lines that are rarely used are connected to consumption-intensive end points such as dishwashers or washing machines. For drinking water installations, the following materials are used:
- Stainless steel
- Galvanized steel
- Plastics and composites
- Allergy-seekers beware : Especially allergy sufferers must pay attention to which cables are installed in-house are. Lead pipes are still to be found in some regions of the Federal Republic. These are especially harmful to drinking water. Tenants should ask the landlord or a HVAC specialist what the installation looks like.
- Have drinking water examined : With the aid of expert analysis and sampling, you can determine whether the quality of the drinking water is in order. Each federal state has accredited inspection bodies that can help at this point.
- Water filter : If there are problems with the drinking water, for example, water filters (osmosis system) can be installed for water treatment. For the use of a water treatment agent it must be ensured that it complies with recognized technical rules. Notes provide the two test marks & quot; DVGW & ldquo; or & dquo; DIN / DVGW & ldquo; (German Association of Gas and Water e.V.). However, there are also devices without test marks that comply with the rules.
- Reinstallation : For new installations, a specialist should contact. Not every material is suitable for water. And which material is suitable, in turn, depends on the water composition. The pH and the content and hardness of organic substances play a major role.
Artikelbild: © Alexander Hoffmann / Shutterstock