A method to distribute water from a private water tank to a user site includes connecting the private water tank to three parallel low pressure Variable Frequency Drive (VFD) pumps, two parallel high pressure VFD pumps, a pressure reducing valve (PRV), a tank level control valve, a flow meter, two pressure gauges, and two pressure transducers; controlling the three parallel low and two high pressure VFD pumps using a PLC programmed with at least first, second, and third low pressure pump set operation curves (LPPSOCs) each specifying a low pressure pump operation set point (B) and a PRV operation set point (F) at each of first, second, and third flow rates and first and second high pressure pump set operation curves (HPPSOCs) each specifying a high pressure pump operation set point (G) and a high pressure pump energizing set point (E) at each of fourth and fifth flow rates.

A method to distribute water from a private water tank to a user site includes connecting the private water tank to three parallel low pressure Variable Frequency Drive (VFD) pumps, two parallel high pressure VFD pumps, a pressure reducing valve (PRV), a tank level control valve, a flow meter, two pressure gauges, and two pressure transducers; controlling the three parallel low and two high pressure VFD pumps using a PLC programmed with at least first, second, and third low pressure pump set operation curves (LPPSOCs) each specifying a low pressure pump operation set point (B) and a PRV operation set point (F) at each of first, second, and third flow rates and first and second high pressure pump set operation curves (HPPSOCs) each specifying a high pressure pump operation set point (G) and a high pressure pump energizing set point (E) at each of fourth and fifth flow rates.

There are described methods and systems for supplying water to an aircraft. A water supply assembly is fluidly coupled to a water storage tank via a supply line. An overflow line is fluidly coupled to the water supply assembly. One or more sensors are configured to determine an amount of water in the water storage tank. One or more processors are communicative with the one or more sensors and configured to: determine a desired amount of water to be contained in the water storage tank; determine from the one or more sensors that an amount of water in the water storage tank corresponds to the desired amount of water; and, in response to determining that the amount of water in the water storage tank corresponds to the desired amount of water, transmit an instruction for causing water being supplied from the water supply assembly to the water storage tank to be diverted to the overflow line.

The present invention provides a leveling differential-pressure diversion peak-shaving water tank with a function of preventing stagnant water and stale water, which comprises a water storage and distribution tank, a water inlet pipeline, a water outlet pipeline and a front tank. The water inlet pipeline is arranged at the upper portion of the water storage and distribution tank and used for feeding water into the water storage and distribution tank. The water outlet pipeline is arranged at the lower portion of the water storage and distribution tank and comprises a main water outlet pipe and a plurality of water outlet branch pipes. One end of each water outlet branch pipe is connected with the main water outlet pipe. The front tank comprises a front tank water box, a front tank water inlet pipeline and a front tank water outlet pipeline. The present invention further provides a water supply pumping station.

There are described methods and systems for supplying water to an aircraft. A water supply assembly is fluidly coupled to a water storage tank via a supply line. An overflow line is fluidly coupled to the water supply assembly. One or more sensors are configured to determine an amount of water in the water storage tank. One or more processors are communicative with the one or more sensors and configured to: determine a desired amount of water to be contained in the water storage tank; determine from the one or more sensors that an amount of water in the water storage tank corresponds to the desired amount of water; and, in response to determining that the amount of water in the water storage tank corresponds to the desired amount of water, transmit an instruction for causing water being supplied from the water supply assembly to the water storage tank to be diverted to the overflow line.

Provided herein are systems for pressurized water storage, comprising: a water barrel having at least 3 fittings attached to it, wherein the first fitting is located towards the middle of the water barrel and adapted for sequentially attaching to a pressure gauge and/or valve and a municipal water supply, the second fitting is located towards the bottom of the water barrel and adapted for attaching to a hose bibb valve, and the third fitting is located on the top of the water barrel and adapted for attaching a pressure relief valve. Also provided herein are methods of using the same.

An autonomous fresh water storage and supply system for a local community, able to meet the water demand for all kinds of situations even under an emergency circumstance and always able to have a five-day fresh domestic water demand storage in its reservoir. It also has multiple pressure zone water distribution capability. In addition, the water pressure of system can be adjusted to the different setpoints by changing VFD pump output pressure. The electrical power of the water station has both regular power supply from the utility line and backup power from a diesel engine generator. All control instrument devices should be connected to an All in One PC terminal and Human Machine Interface (HMI). All water qualities should be frequently monitored and tested to meet the local water code requirements.

An autonomous fresh water storage and supply system for a local community, able to meet the water demand for all kinds of situations even under an emergency circumstance and always able to have a five-day fresh domestic water demand storage in its reservoir. It also has multiple pressure zone water distribution capability. In addition, the water pressure of system can be adjusted to the different setpoints by changing VFD pump output pressure. The electrical power of the water station has both regular power supply from the utility line and backup power from a diesel engine generator. All control instrument devices should be connected to an All in One PC terminal and Human Machine Interface (HMI). All water qualities should be frequently monitored and tested to meet the local water code requirements.

A controller for a well system automatically profiles the system, detects a pre-charge of an associated pressurized storage tank, and automatically configures pressure-based control of a pump based on the detected pre-charge. The controller determines the pre-charge of the pressurized storage tank while the tank is connected to the system. While monitoring a system pressure, the controller activates the pump to initiate a filling operation of the pressurized storage tank. The controller analyzes a change in system pressure during the filling operation to determine the pre-charge of the pressurized storage tank. With the pre-charge determined, the controller automatically configures pressure settings for pressure-based control of the pump.

A control system (15) controls a water supply from at least two separate input lines (3i-k) into a sector (1) of a water supply network. The control system (15) is configured to receive input flow information indicative of the water input flow (q.sub.i-k) through each of the input lines (3i-k). The control system (15) is configured to receive input pressure information indicative of the input pressure (p.sub.i) in at least one (3i) of the input lines (3i-k). The control system (15) is configured to receive pressure information indicative of at least one pressure value (p.sub.cri,m,n) determined by a pressure sensor (7m,n) within the sector (1). The control system (15) is configured to control the input pressure (p.sub.i) by controlling at least a pressure regulating system (13i) at an input line (3i) based on the input flow information from all input lines (3i-k) and based on the sector pressure information.