The water purifiers are household appliances for removal of potential contaminants, with the goal of improving the quality of the water.
The use of water purifiers is justified in cases where there is possibility of contamination of the domestic water, with pipes, poorly kept, or in more remote places where there is no treatment of the water.
With the indicator for safe water to reach the 99 % (98,69 %) may be ensured to the population of Continental Portugal that you can drink water from the tap with confidence, as demonstrated by the data of the annual report of ERSAR about the “Quality Control of Water for Human Consumption” refers to the year of 2016.
In fact, the indicator for safe water in the order of 99 % confirms the excellent quality of water for human consumption in Continental Portugal, putting us at the level of the more developed countries of Western Europe.
ERSAR ALERT TO THE MISUSE OF WATER PURIFIERS
In a note sent to the press, the Regulatory Entity of Water Services and Waste (ERSAR) alert to the misuse of water purifiers.
In Portugal, the results of the control done to the quality of the water from the faucet to ensure a high level of safety in the protection of human health.
The indicator of safe water in Portugal is currently 99%. These results reinforce the idea that there is any justification for consumers to purchase and install treatment systems for domestic water, commonly known as scrubbers, when they are supplied by the public network supply.
However, there has been in recent years that some companies try to sell water purifiers using a experience misleading and trying to convince consumers of the need for additional treatment of tap water.
HOW COMPANIES JUSTIFY THE IMPORTANCE OF THE PURCHASE?
One of the statements often made is the electrolysis of water from the faucet, in which the mineral salts and compounds that exist in water are separated through of electrical current, accumulating on the electrodes placed within the water. The accumulation of these compounds and mineral salts in the electrode form a film visible, due to the separation of the different chemical elements are naturally present in water intended for human consumption.
The second part of the demo consists, as a general rule, perform the same procedure on the water filtered by the “purifier” that if you want to trade. These appliances use the process of reverse osmosis or ion exchange, where the mineral salts present in the water are retained, so that when it occurs the electrolysis of this water does not form the aforesaid film.
In those statements you want to, sometimes, lead the consumer to believe that the water that reaches your home through the public network has a poor quality.
In fact, the reverse osmosis to eliminate the dissolved mineral salts in the water, makes the water soft and balanced on the equivalent of distilled water, such as used, for example, in iron. In reality, these devices produce a water of mineral composition unbalanced, and that does nothing to help in the protection of human health.
The ERSAR reaffirms that there is no need to perform additional treatments to the water of the public water supply and advises consumers to report by the ERSAR, of the entities distributing water and of the health authorities before acquiring these equipment.
WHEN WE MUST RESORT TO PURIFYING WATER?
Experts indicate that the water treated by the supply system in large cities, in general, has good quality, and the water purifier ideal, for example, to residents of areas that make use of artesian wells, or that have contamination in the network up to the home, such as in situations of floods and leaks continued.
WILL BE BENEFICIAL TO THE HEALTH OF THE PURIFIED WATER?
On the site itself and the ERSAR the complaint is clear: this purified water is not recommended for regular consumption, because it is very poor in elements that are beneficial and fundamental as minerals and especially calcium that prevents osteoporosis. The purifier is suitable for water quality, inquinada, salt, etc. The purified water is suitable for irons, radiators, coffee machines, doctors ‘ offices, etc., because it is very similar to distilled water.
The water is demineralised or slightly mineralised, in the absence of light, or shortage of essential minerals is not considered the optimal water and, therefore, its regular consumption and in the long term may not be providing adequate levels of some beneficial nutrients. At a later stage, with continuation of the intake of demineralized water or purified, may arise problems health important, especially in children.
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