It is best not to drink the water in solar water boiled over fire.
Solar water heaters are now increasingly entering ordinary households. Many users not only use the hot water in solar energy to wash their faces, It is used for bathing, washing dishes, washing clothes, washing vegetables, washing rice, and some are even used for cooking rice, cooking vegetables, boiling water, etc.
According to experts, with brand-name solar water heaters, after adding water to the empty water tank, the water on that day is drinkable under good lighting conditions. However, in general, most of the water in solar water heaters is reheated. This is mainly because the water heater has been used for many years, and part of it is old water (that is, unused water), which will accumulate dirt and contain a lot of harmful substances. In addition, , the water temperature in the water heater stays at 50℃-60℃ for a long time, which is the temperature where bacteria are most likely to breed. During this process, a lot of nitrite will be generated. Nitrite is a carcinogen, so the water in the solar water heater cannot be used for drinking.
I have been using a solar water heater at home for nearly 8 years. I clean the hot water tank every 2 to 3 years. I see mud and sand-like debris at the bottom of the tank. It shows that the solar water is not clean!!
"Sun Water"------This term was successfully included in the Baidu Encyclopedia entry. There are two types of water we often drink: one is what people usually call boiled water; the other is purified water.
Boiled water can only be sterilized by high temperature, and it is difficult to eliminate all harmful bacteria in the water. If heating containers such as aluminum pots and iron pots are used, the oxygen in the water will react with the heating container at high temperatures, causing The taste of the boiled water produced is different.
Although purified water can filter out harmful impurities in the water, it also filters out minerals and trace elements that are beneficial to the human body. Therefore, experts recommend that purified water is not suitable for long-term drinking, especially for those in the growth and development period. Children and teenagers.