Patent ID: 8114275

Claim:
A regeneration tank for regenerating a water softener, comprising: a hollow casing, having an open inlet part so that a regenerative substance is supplied into the casing through the open inlet part, an mounting part to be coupled to the water softener, and a storage part provided between the open inlet part and the mounting part to contain the regenerative substance therein; a cap fitted into the open inlet part to close the open inlet part, the cap being constructed such that a pressure in the casing is adjustable; and a flow control unit installed in the casing to control a flow rate of water drawn into the casing wherein the flow control unit comprises a stationary member provided in the mounting part, the stationary member having therein a water passage, along which water is drawn into the casing; and a movable member provided in the water passage of the stationary member to open or close the water passage, the movable member being elastically biased by an elastic member in a direction away from an inner surface of the stationary member.