Clothes treating apparatus with liquid supply unit

Abstract

A washing-drying system and a water supply controlling method, the system comprising: a first main body configured to perform washing; a second main body installed at one side of the first main body and configured to perform drying; water supply lines formed both in the first and second main bodies; and a water supply controlling unit configured to control an open or closed state or a connected or disconnected state of the water supply lines, wherein warm water and cold water respectively supplied from warm water source and cold water source both existing outside the system flow through the second main body to thusly be supplied into the first main body, whereby wastewater having high temperature generated after drying or dehumidifying laundry can be used for warm water washing, so as to save water required for the warm washing, and also to reduce energy consumed to generate warm water.