The present invention relates to a dishwasher (1) comprising a tub (3) having more than one side wall (2), wherein the washing process is performed, a door (4) providing access into the tub (3) and a detergent dispenser (5) disposed on the door (4) wherein the chemical substances like detergent, softener and rinse aid are placed.

A washing appliance has a hydraulic circuit including a tank for storing a predetermined amount of liquid, and a heating element inside the tank. The heating element heats the liquid to a predetermined temperature. A water inlet receives water from a water supply network. A descaling apparatus includes a descaler chamber having a housing portion housing a descaler product container containing a descaling agent and a mixing portion containing a mix of water and a predetermined amount of the descaling agent. The housing portion is fluidly connected to the mixing portion and an inlet pipe fluidly connecting a water inlet to the descaler chamber. The descaling apparatus also includes an outlet pipe that drains the mix of water and descaling agent from the mixing portion and provides it to the tank and a spraying element in the mixing portion that sprays water from the inlet pipe towards the housing portion.

A water softening apparatus having an improved structure to provide a function of an air brake, a dishwasher including the same and a control method thereof, the water softening apparatus having an air brake assembly and a regeneration tank and configured to soften wash water being supplied from a tub, wherein the air brake assembly including a water supply valve allowing wash water to be introduced therethrough, an ion exchange tank to accommodate an ion exchange resin therein, and a plurality of valves installed on a first path allowing wash water being introduced through the water supply valve to flow toward the ion exchange tank, wherein the regeneration tank is connected to the air brake assembly and accommodates regeneration material configured to purify the ion exchange resin.