A method of control and management for a plant system for the purification of water for alimentary use, wherein said plant system comprises at least: - a water purifier comprising at least a filter to purify the water, said filter having a definite life time represented by a wear tolerance threshold defined by a number of consumable liters that can be purified before the filter is exhausted; - a feeding line to connect said purifier to the water network; - a faucet connected to the purifier line to dispense purified water; - a control unit; - a display connected to the control unit; - a solenoid valve at the inlet of the feeding line controlled by the control unit; - a transducer tor continuously monitoring a pressure variation on said feeding line so as to signal the opening of the faucet; - a flow meter on the feeding line, located between the solenoid valve and the water purifier, and connected to the control unit; - a communication system tor communicating data from the control unit to a remote control center and from the remote control center to the control unit; said method comprising the steps of: - pre-setting on the control unit the number to consumable liters to water that can be purified before the filter is exhausted; - continuously monitoring a pressure variation on the feeding line by means of the transducer, which sends a signal to the control unit whenever the faucet is opened; - opening the solenoid valve by means of the control unit upon receiving from the transducer the signal of the opening of the faucet, if consumable liters are available; - using the flowmeter to count the number of consumed liters of water passing through the purifier and sending this data to the control unit; - calculating by means of the control unit the difference between the pre-set number of consumable liters and the number of consumed liters flown through the flowmeter; - sending in real time the data of the control unit to a display showing in real time the difference D between the pre-set number of consumable liters and the number of consumed liters; - upon exhaustion of the available consumable liters, when the difference D is equal to zero, generating an alarm and closing the solenoid valve by means of the control unit, therefore closing the supply of water from the network to the plant system so as to guarantee the optimal quality of the consumed water and thus the health and safety of the user: wherein the method further comprises the steps of: - transmitting in real time to the remote control center by means of the communication system the number of consumed liters: - providing remote real time assistance from the remote control center concerning maintenance of the plant system so as to guarantee the optimal quality of the consumed water and thus the health and safety of the user. - a water purifier comprising at least a filter to purify the water, said filter having a definite life time represented by a wear tolerance threshold defined by a number of consumable liters that can be purified before the filter is exhausted; - a feeding line to connect said purifier to the water network; - a faucet connected to the purifier line to dispense purified water; - a control unit; - a display connected to the control unit; - a solenoid valve at the inlet of the feeding line controlled by the control unit; - a transducer tor continuously monitoring a pressure variation on said feeding line so as to signal the opening of the faucet; - a flow meter on the feeding line, located between the solenoid valve and the water purifier, and connected to the control unit; - a communication system tor communicating data from the control unit to a remote control center and from the remote control center to the control unit; - pre-setting on the control unit the number to consumable liters to water that can be purified before the filter is exhausted; - continuously monitoring a pressure variation on the feeding line by means of the transducer, which sends a signal to the control unit whenever the faucet is opened; - opening the solenoid valve by means of the control unit upon receiving from the transducer the signal of the opening of the faucet, if consumable - using the flowmeter to count the number of consumed liters of water passing through the purifier and sending this data to the control unit; - calculating by means of the control unit the difference between the pre-set number of consumable liters and the number of consumed liters flown through the flowmeter; - sending in real time the data of the control unit to a display showing in real time the difference D between the pre-set number of consumable liters and the number of consumed liters; - upon exhaustion of the available consumable liters, when the difference D is equal to zero, generating an alarm and closing the solenoid valve by means of the control unit, therefore closing the supply of water from the network to the plant system so as to guarantee the optimal quality of the consumed water and thus the health and safety of the user: - transmitting in real time to the remote control center by means of the communication system the number of consumed liters: - providing remote real time assistance from the remote control center concerning maintenance of the plant system so as to guarantee the optimal quality of the consumed water and thus the health and safety of the user.