Will the black fungus that has been soaked in the water for a long time be poisoned? If the electric water heater is not cleaned for three years, it is equivalent to bathing with sewage. Recently, the Beijing Science and Technology Association and the Beijing Regional Website jointly rumored the platform and the Beijing Science and Technology Journalist Editorial Association. The co-published “Monthly Science Gossip List†provides a scientific explanation for these rumors, telling people that those so-called common sense rumors of life cannot be trusted.
Electric water heater for three years without cleaning is equal to sewage bathing?
Sewage is not reliable but needs regular cleaning
â—Ž rumors: electric water heater does not clean for three years is equivalent to using "sewage" bath? This conclusion is derived from a media field to see the electrical maintenance of the master cleaning the water heater, the brown water or even red sewage from the water heater, thus asserting If the water heater is not cleaned for two or three years, it is equivalent to taking a bath with sewage.
â—Ž Truth: If the electric water heater is not cleaned, the sewage is mainly the scale formed by the condensation of calcium and magnesium ions in the water on the surface of the metal heating rod with high temperature, that is, calcium carbonate and magnesium hydroxide. In addition, if the tap water purification is not complete, there will be a lot of colloids, particles, rust, sediment, etc. in the water, they can also be combined with small scale particles to form a thick layer of scale on the heating rod, the longer the time, The thicker the scale. In order to solve the problem of scale, most electric water heaters are designed and installed with magnesium rods. After energization, the magnesium rods produce cations, which can reduce the scale generation and precipitation to some extent.
Even if the electric water heater is not cleaned and the scale accumulates on the heating rod and deposits on the bottom of the liner, the so-called "sewage" containing scale will not flow out from the shower, because the hot water outlet is at the top of the liner, and the cold water The inlet is at the bottom of the liner. When taking a bath, cold water continuously enters the water heater liner, the hot water is squeezed to the top, and the scale is deposited at the bottom of the liner, so the water coming out is the clean water at the top.
Of course, water heaters still need to be cleaned, mainly due to environmental protection and energy saving. Xu Xiaofeng
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