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Fresh water sources occupy about 3% of the Earth’s surface. If we compare it with the water of the seas and oceans, then fresh water bodies occupy 5 thousand times less in volume. Only 1% of fresh water bodies are suitable for human consumption. It is expected that in 2060, about 80% of the population may experience a shortage of drinking water.
A person needs to drink water every day, otherwise its deficiency can lead to dehydration. On average, the body needs 2-3 liters of water per day, or 30-40 ml per 1 kg of weight.
What kind of water do we drink?
There is no perfectly clean water. It contains a large number of bacteria, fungi, microorganisms, and organic compounds.
The water that flows from our tap can not be called high-quality and useful. In 80% of cases, this is chlorinated water. Chlorination is a method of water disinfection. It is toxic to microorganisms, so it has been used for the last half century. However, what is dangerous for microorganisms can be dangerous for humans. Chlorine is harmful because it dries the skin, promotes the formation of wrinkles, and there is also a chance of developing kidney and bladder cancer. Therefore, it is not recommended to cook, and even more so to drink raw chlorinated water. In this case, the water can be maintained for at least 1 day, or at least 30 minutes before use.
Tap water is in most cases very hard due to the content of calcium salts in it. There is no centralized water softening in our country. Such water should be boiled or passed through a filter. Prolonged boiling allows you to soften the water.
What kind of water to drink: raw or boiled?
The vast majority of people are used to boiling water in order to increase its usefulness or at least get rid of the microbes contained in it. But is boiled water really that good? The main disadvantage of boiled water is that it is almost completely deprived of oxygen, which is so necessary for our cells. Boiled water is called “dead” by many experts. During boiling, useful salts precipitate, which is no longer dissolved. During the boiling of chlorinated water, chlorine is converted into dangerous toxic compounds that negatively affect the work of internal organs.
Raw water is preferable for humans because of the content of trace elements in the form of salts, but only if it is purified from impurities. Water that is purified by the central water utility and brought to the requirements of regulatory documents of drinking water quality is not the best option for a person. Therefore, it is better to filter or defend raw water. The optimal time for settling is at least 2 hours. In order to use a water filter, you need to first make a water analysis to know what it needs to be cleaned from. Different filters have different cleaning features. A properly selected filter system will provide the house with clean water.
Good quality water sources
In addition to boiled and filtered water, there are several other sources of quality water.
Water from the store-safe, but expensive
Store water is unlikely to contain rust or chlorine, it is cleaned by special systems, due to which the desired level of quality is achieved. Mineral water is extracted from natural sources and is rich in various trace elements and useful compounds. Mineral water can be different in composition and is not suitable for everyone. In some cases, the use of mineral water can lead to ailments. In case of diseases of the internal organs, the use of mineral water is prohibited. In addition, it is not recommended to drink mineral water on a regular basis, no matter how openly every producer of mineral water declares it. The cost of store-bought water, especially recently, is quite high (from 15 rubles for 0.5 liters).
Bottled water-quality guarantee
The vast majority of offices are equipped with coolers with bottled water, which has also become used in the home. This is a very convenient method. Installing a cooler allows you to provide a large number of people with a high-quality water source. After all, manufacturers are under strict state supervision. You can choose and install a convenient water cooler from a large number of offers available on the market. Water coolers can be purchased in household appliances stores, for example, in Moscow, you can go to the Technosila chain of stores, the Media Markt metro market, the Eldorado chain of stores, etc. You can also make a convenient order via the Internet. Buy a cooler is not difficult.
Water from a well – a luxury for owners of country houses
Water from the well is available to villages and country house owners. The costs include the construction of a well, drilling a well (about 15 thousand rubles-up to 20 meters) and paying for electricity in the case of using an electric pump. Such water is relatively safe. At great depth, it is less likely to encounter pesticides in its composition. A shallow depth can be a risk, as harmful impurities can seep through the ground along with rainwater. Therefore, you need to drill a deep well.
Spring water is the least affordable source of quality water
Spring water is often crystal clear and safe, and also free of charge. But the fact is that there are very few such water sources. The existence of such a source may not even be known at the time when it is nearby. The taste of spring water is very pleasant. As a rule, such sources are located in impassable places.