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 ultrapure water supply system 10 includes a pure water tank 16 provided vertically below a use point 30, a return pipe 32 through which ultrapure water is returned from the use point 30 to the pure water tank 16, a first pressure regulating valve 40 that is provided at a first position H1 of the return pipe 32 and adjusts a first pressure upstream of the first position H1 and a second pressure regulating valve 42 that is provided at a second position H2 downstream of the first position H1 and vertically below the first position H1 of the return pipe 32 and adjusts a second pressure downstream of the first position H1 and upstream of the second position H2.

A ultrapure water supply system 10 includes a pure water tank 16 provided vertically below a use point 30, a return pipe 32 through which ultrapure water is returned from the use point 30 to the pure water tank 16, a first pressure regulating valve 40 that is provided at a first position H1 of the return pipe 32 and adjusts a first pressure upstream of the first position H1 and a second pressure regulating valve 42 that is provided at a second position H2 downstream of the first position H1 and vertically below the first position H1 of the return pipe 32 and adjusts a second pressure downstream of the first position H1 and upstream of the second position H2.

A system for the automatic management of the wastewater and freshwater for recreational vehicles is disclosed. The system includes a plurality of sensors configured for monitoring a first volume of blackwater within a blackwater holding tank, a second volume of greywater within a greywater holding tank, and whether an egress conduit is attached to a sewage system. The system further includes a processor configured for receiving a plurality of first signals from the plurality of sensors and sending a plurality of second signals to at least one of a plurality of values within the system. The processor is configured for determining if the first volume and second volume exceeds a first predetermined maximum threshold and a second predetermined maximum threshold respectively, then transmitting one of the plurality of second signals to prevent matter and wastewater from entering at least one of the blackwater holding tank and greywater holding tank.

A system for the automatic management of the wastewater and freshwater for recreational vehicles is disclosed. The system includes a plurality of sensors configured for monitoring a first volume of blackwater within a blackwater holding tank, a second volume of greywater within a greywater holding tank, and whether an egress conduit is attached to a sewage system. The system further includes a processor configured for receiving a plurality of first signals from the plurality of sensors and sending a plurality of second signals to at least one of a plurality of values within the system. The processor is configured for determining if the first volume and second volume exceeds a first predetermined maximum threshold and a second predetermined maximum threshold respectively, then transmitting one of the plurality of second signals to prevent matter and wastewater from entering at least one of the blackwater holding tank and greywater holding tank.

A refrigerator has a storage chamber opened and closed by a door and a water supply system to supply water to a water taking port disposed at the door. The water supply system includes a water tank and a plurality of connecting pipes. The water tank includes an elongated cylindrical shaped body and a cap configured to form a reservoir such that a section of the cap overlaps the body, a first port having a passageway integral with the elongated cylindrical shaped body, and a second port integral with the cap, the second port being aligned in a direction different from a longitudinal axis of the water tank. The connecting pipes include a first water line positioned in an opening of the first port in a direction different from the longitudinal axis of the water tank, and a second water line positioned in an opening of the second port.

A refrigerator has a storage chamber opened and closed by a door and a water supply system to supply water to a water taking port disposed at the door. The water supply system includes a water tank and a plurality of connecting pipes. The water tank includes an elongated cylindrical shaped body and a cap configured to form a reservoir such that a section of the cap overlaps the body, a first port having a passageway integral with the elongated cylindrical shaped body, and a second port integral with the cap, the second port being aligned in a direction different from a longitudinal axis of the water tank. The connecting pipes include a first water line positioned in an opening of the first port in a direction different from the longitudinal axis of the water tank, and a second water line positioned in an opening of the second port.

A personal hydration system is disclosed that includes a reservoir and a drinking hose (drinking straw). The drinking hose is in fluid communication with the reservoir and includes a textured (irregular) inner surface configuration to facilitate cleaning of the drinking hose. In certain embodiments of the disclosure, the drinking hose is configured and provided as a standalone component (product).

A personal hydration system is disclosed that includes a reservoir and a drinking hose (drinking straw). The drinking hose is in fluid communication with the reservoir and includes a textured (irregular) inner surface configuration to facilitate cleaning of the drinking hose. In certain embodiments of the disclosure, the drinking hose is configured and provided as a standalone component (product).

A flood-resistant building is equipped with a flood barrier which enables safe and long-term refuge during floods. In a site surrounding a building, a flood barrier is constructed which encloses nearly the entire periphery of the building. An opening sealing means is connected to an entrance hall and another section serving as an entrance and exit at normal times. The opening sealing means seals the openings of these sections in a watertight manner where the openings are sealed via the opening sealing means. The flood barrier is watertight and at least as tall as the inundation depth estimated to occur in a target area when flooding or storm surges arise. In order to enable long-term refuge, an emergency-use water receiving tank 4 and an emergency-use generator are installed on the roof of the building, and an emergency-use septic tank is installed underground on the site.