Taking a bath in a hotel, the water is slippery, like soapy water in it. Is it okay to take a bath with such water?

It is frightening to imagine that you don't know chemical engineering.

The water is slippery, probably because it is soft! !

In other words, if the hardness of water is very low, it will be slippery. Try distilled water and deionized water yourself. Whether it is soap or washing powder, you can't wash the greasy bubbles off your hands with a basin of water, which always makes you feel slippery.

If there is no distilled water, another method can be used to prove that the water is slippery after the hardness of the water is controlled: when taking a bath, if soap is used, it will not slip immediately after flushing. And if you use shower gel (which contains a water softener, which is a metal ion blocker to control the hardness of water), no matter how you wash it, your body will always be wet and slippery. Yes, because the water contains some high-quality minerals, so the water is very slippery. There is always a feeling that it can't be washed clean. It's okay.