Whether it is a domestic water pipe or a water supply pipe, there will be some garbage in it after a long time of use, and these garbage contains some bacteria, rust, crystals, etc. Do these stains need to be removed? Is there any harm to the human body? There are definitely dangers, it's just a matter of how much. But I don't know if everyone noticed. The water pipes that everyone usually use will not be replaced, and even if you want to replace it, it is very difficult. Whether it is an open pipe or a dark pipe, it is very difficult, because most of these pipes enter directly from the wall, and it is very difficult to replace them later. Then you can't replace it, you can only clean it.
