Isn't it a bit like bleach? If so, it is the smell of chlorine released during the decomposition of disinfectant sodium hypochlorite. Sodium hypochlorite is the most commonly used disinfectant in tap water.

After washing my hands, I feel my fingers are very astringent The most doubtful thing is this.

Another way to enter impurities is to use inferior organic pipes in the system, which will also decompose into unpleasant smells during aging. But this pipeline can only appear at the end of the system, and no one dares to use the main pipeline.

"The taste of the morning is heavier. The water in the bathroom tastes a little heavier than the water in the kitchen. "For example, this.

Tap water is a closed positive pressure system, and the possibility of natural invasion of foreign substances is extremely small.