Taichang foot bath tub first, well, unscrew the nut, insert the core slightly, clamp the outer ring with pliers, and pull it out while rotating. If some strong ones can't be pulled out, we will use a chisel to pull around. If it still doesn't come out, we'll use an electric drill chisel to get in. The advantage of this foot bath tub is that it can be started intelligently with one button. It is specially designed for middle-aged and elderly people, and it is easy to operate, so don't worry that parents won't use it. The default water temperature of Taichang Foot Bathtub is 35℃. Press the temperature "+"key once, the temperature will rise by one degree, and press the temperature "-"key once, the temperature will drop by one degree, and the temperature setting range is between 35℃ and 48℃.