When we turn on the hot water in the bathroom, the water is often cold at first. That is because the cold water in the hot water pipe is discharged first. This water pump returns the cold water in the hot water pipe to the heat source for reheating, allowing users to enjoy instant hot water. The product features a rounded and discrete design, in line with the look of modern household appliances. The surface of the display is black, the shell is white, the button color is silver, the logo is eye-catching and easy to identify.