Faucet conversion system

A water treatment apparatus comprising:

• at least one module which operatively treats the water flowing through the at least one module and treats cold water received from an original household cold water line that flows through;
• a process control unit whereby a user selects a desired treatment option for the water flowing through the apparatus to be dispensed to the user wherein the desired treatment options include filtered water and one or more of:
• on-demand hot water at a temperature of from about 180° F. to about 212° F.;
• on-demand cold water at a temperature of from about 43° F. to about 32° F.;
• and ozonation;
• one or more plumbing connections which operatively divert the original household cold water flow to the user selected water treatment module so as to dispense to the user the selected treated water;
• one or more valves which operatively cooperate with the process control unit to direct the water flow within the apparatus so as to provide the user with the selected treated water;
• and
• a near-field communication (NFC) system operatively connected to one or more modules of the apparatus which provides apparatus status information to the user by way of a NFC reader and an NFC tag token that is not physically connected to any other component of the water treatment apparatus and wherein the NFC tag token does not include a battery, but includes a processor that is processed by the NFC reader and records filter use information and indicates to a user when filtered water is not being provided when positioned proximate the reader and after the useful life of a water filter delivering the filtered water;
• wherein a flapper check valve is positioned within a cold water outlet and the flapper check valve is configured to operatively open upon closure of a faucet so as to drain away the water retained within the cold water outlet to a drain line.