A: You want to change your home cooking, vegetables and drinking water use issues, and then you just choose any installed a water purifier in your home kitchen on it. 2: You want to change your home water hardness, you can optionally install a water softener in your home water mains above it. Three: You want to change the water in your home all the problems that can be installed in a water softener to the water mains, and then install a water filter in the kitchen. This is the best choice to install, but the choice of when to pay attention to the water softener system processing capacity, the average family in the 0.75 to 1.0 t per hour on it. Four: You want to cook the vegetables with water. Bathe, wash your face with soft water, you can install in your home kitchen water purifier, water softener installed in your bathroom where total water