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.

Provided is a tank including a polymeric upper dome having a neck with a through passage, a polymeric lower dome having a neck with a through passage, a polymeric shell having a first end connected to the upper dome and a second end connected to the lower dome, and a connection attached to each of the upper and lower domes in the through passages of the necks, wherein the upper dome, lower dome, and shell form a cavity.

A device for diverting and defoaming with a bent pipe applied to a high head water supply structure includes an inner well, an outer well, a baffle, and a plurality of overflow pipes. The baffle is respectively connected with an outer wall of the inner well and an inner wall of the outer well to form an overflow groove, the top end of the inner well is higher than the baffle to form an overflow weir, one end of the overflow pipe is provided with a first pipe orifice in the overflow groove, the other end of the overflow pipe is communicated with the inner well to form a second pipe orifice, the first pipe orifice is higher than the second pipe orifice, the overflow pipe is bent in the overflow groove to form a first bending part, and the first bending part is higher than the first pipe orifice.

A device for diverting and defoaming with a bent pipe applied to a high head water supply structure includes an inner well, an outer well, a baffle, and a plurality of overflow pipes. The baffle is respectively connected with an outer wall of the inner well and an inner wall of the outer well to form an overflow groove, the top end of the inner well is higher than the baffle to form an overflow weir, one end of the overflow pipe is provided with a first pipe orifice in the overflow groove, the other end of the overflow pipe is communicated with the inner well to form a second pipe orifice, the first pipe orifice is higher than the second pipe orifice, the overflow pipe is bent in the overflow groove to form a first bending part, and the first bending part is higher than the first pipe orifice.

Provided is a tank including a polymeric upper dome having a neck with a through passage, a polymeric lower dome having a neck with a through passage, a polymeric shell having a first end connected to the upper dome and a second end connected to the lower dome, and a connection attached to each of the upper and lower domes in the through passages of the necks, wherein the upper dome, lower dome, and shell form a cavity.

A water control device includes a valve, the valve including a valve body, the valve body including a first end and a second end, the valve body defining a transmission cavity allowing fluid communication between the first end and the second; a control mechanism located within the transmission cavity, the control mechanism arranged to provide modifiable fluid control within the valve; at least one sensor, the at least one sensor being in fluid communication with the transmission cavity; and at least one remote transmission unit in electronic communication with the sensor.

Provided is a tank including a polymeric upper dome having a neck with a through passage, a polymeric lower dome having a neck with a through passage, a polymeric shell having a first end connected to the upper dome and a second end connected to the lower dome, and a connection attached to each of the upper and lower domes in the through passages of the necks, wherein the upper dome, lower dome, and shell form a cavity.

A wall unit (V) for a retaining structure (100) comprises a foot portion (1a) and a wall portion (1b), wherein the wall portion (1b) is inclined with respect to the foot portion (1a), so that it extends over the foot portion (1a). Accordingly, the wall unit (1) is stable during construction and assembly. A corner unit (7) for a retaining structure (100) is adapted to engage with two wall units (1). A retaining structure (100) comprises at least one wall unit (1).

A water control device includes a valve, the valve including a valve body, the valve body including a first end and a second end, the valve body defining a transmission cavity allowing fluid communication between the first end and the second; a control mechanism located within the transmission cavity, the control mechanism arranged to provide modifiable fluid control within the valve; at least one sensor, the at least one sensor being in fluid communication with the transmission cavity; and at least one remote transmission unit in electronic communication with the sensor.

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.