The present invention relates to a water transfer apparatus capable of high-pressure discharge, which allows for effectively transferring water to high-rise buildings or remote places which are difficult to supply water, or factories requiring a large amount of water, etc. by discharging water from a water tank at high pressure by means of a plurality of pressurized exhaust apparatuses. That is, the present invention comprises: a water tank in which water is stored; a plurality of pressurized exhaust apparatuses installed inside the water tank; a plurality of exhaust pipes connected to the outlets of the pressurized exhaust apparatuses; a water collection part, connected to the plurality of exhaust pipes, in which joined water is collected at high pressure and which has a shape tapering toward a discharge direction; and a discharge part, installed at the tapered end of the water collection part, through which high-pressure water is discharged, wherein the pressurized exhaust apparatuses comprise: storage parts in which the water in the water tank is held through an inlet port; pressurizing members which exhaust the water in the storage parts toward the outlets; and hydraulic operation parts configured to elevate the pressurizing members.

A pump system for liquid media includes at least one pump having a suction side and a delivery side, a control unit connected to the at least one pump, and at least two controllable valves connected on one side thereof to the suction side. The valves are controlled by the control unit connected thereto, such that each valve only allows passage of medium from a first source or second source connectable to their respective other valve sides. The pump system also includes at least one level sensor connected to the control unit, which level sensor is positioned at least near the source where, in the case of a critical level being exceeded, medium must be pumped away.

This method and apparatus relates to water supply demand challenges related to available water reserves caused by seasonal and diurnal peak water demand, emergency water demand such as firefighting efforts and service or supply interruptions for municipal or rural water systems, while also reducing incidence of stagnation in connected pressure tank(s); and more particularly to a water storage apparatus that uses one cycle valve, at least one pressure tank and at least one check valve connected to water service lines that are connected to water mainlines that are connected to municipal or rural water systems. This method and apparatus can reduce water system peak demand challenges and automatically cycle or draw down pressure tanks, while storing regularly refreshed water for use by the water user or customer during service or supply interruptions; commonly called emergency water storage.

This method and apparatus relates to water supply demand challenges related to available water reserves caused by seasonal and diurnal peak water demand, emergency water demand such as firefighting efforts and service or supply interruptions for municipal or rural water systems, while also reducing incidence of stagnation in connected pressure tank(s); and more particularly to a water storage apparatus that uses one cycle valve, at least one pressure tank and at least one check valve connected to water service lines that are connected to water mainlines that are connected to municipal or rural water systems. This method and apparatus can reduce water system peak demand challenges and automatically cycle or draw down pressure tanks, while storing regularly refreshed water for use by the water user or customer during service or supply interruptions; commonly called emergency water storage.

A water use management system may be installed in a setting that contains a primary infrastructure for water use to provide an alternate, modular infrastructure for water use. Fresh water used at various points of use, such as a shower or sink, may be diverted into the modular infrastructure prior to draining into the primary infrastructure. Once diverted, the precedent use water is received at a reservoir system where it is treated for a subsequent use. Treatment may include filtration and/or chemical treatment, and may be based upon sensor feedback from the reservoir system. Once treated, the water is ready for subsequent use and may flow from the reservoir system, via the modular infrastructure, to a subsequent point of use, such as a toilet.

A water use management system may be installed in a setting that contains a primary infrastructure for water use to provide an alternate, modular infrastructure for water use. Fresh water used at various points of use, such as a shower or sink, may be diverted into the modular infrastructure prior to draining into the primary infrastructure. Once diverted, the precedent use water is received at a reservoir system where it is treated for a subsequent use. Treatment may include filtration and/or chemical treatment, and may be based upon sensor feedback from the reservoir system. Once treated, the water is ready for subsequent use and may flow from the reservoir system, via the modular infrastructure, to a subsequent point of use, such as a toilet.

The disclosure provides a controller and server combination, which implements a set of software programs to control a booster pump system. In a preferred embodiment, the software derives quadratic models for the pump performance curves, and the system curve. The system monitors the flow rate of the system, the pump performance curve model and the system curve model to adjust the drive frequency and the number of active pumps to meet flow rate demand efficiency.

A pump control system receives inputs from a low level fluid level sensor, a high level fluid level sensor, and/or a temperature sensor. Based on inputs from the sensors, and in response to sensed trouble conditions, duplex pumping or pump specific simplex operation is restricted based on past and present pump current draws. Furthermore, using the temperature sensor and a temperature sensor output device, the temperature of the sump environment can be monitored at will from a remote location.

A pump control system receives inputs from a low level fluid level sensor, a high level fluid level sensor, and/or a temperature sensor. Based on inputs from the sensors, and in response to sensed trouble conditions, duplex pumping or pump specific simplex operation is restricted based on past and present pump current draws. Furthermore, using the temperature sensor and a temperature sensor output device, the temperature of the sump environment can be monitored at will from a remote location.

A pressure boosting device increases pressure of a fluid flowing through a conduit (5) and includes a booster pump (2), a control device (12), controlling the booster pump (2), as well as a pressure sensor (8) arranged at the exit side of the booster pump (2) and connected to the control device. The control device (12) is configured to control the booster pump, in an operating region, in a start-stop operation, a switching off of the booster pump (2) when reaching an upper pressure limit value (P.sub.1) and a switching on of the booster pump (2) when reaching a lower pressure limit value (P.sub.2). The control device (12) is further configured in a start-stop operation to automatically adapt at least one pressure control parameter (P.sub.1, P.sub.2) of the control device (12) on the basis of the temporal course of at least one pressure value (P) detected by the pressure sensor.