1, the temperature and comfort are different: the water temperature of a private outdoor bath can be adjusted according to personal preference and can be heated as needed, thus providing a more comfortable bathing experience, while the water temperature of a bathtub is relatively difficult to control and may need to be adjusted according to the ambient temperature.

2. Different mineral content: The water quality of private wild fish may be rich in minerals, which has a certain health care effect on skin and body health, while the water quality of bathtub may be relatively poor and cannot provide similar effects.