Pumping water at a flow rate equal to a flow rate of a compressed air flowing into a reservoir having a stopper

A non-transitory computer-readable medium storing instructions which, when executed by at least one processor of a device for compressing and pumping water, cause the at least one processor to:

• control the device to raise a stopper slidably disposed within a reservoir to a raised position, wherein the stopper is configured to divide the reservoir into an upper portion and a lower portion, and comprises a closable vent;
• control a water fill pipe to provide the water to the lower portion of the reservoir while the stopper is in the raised position;
• control a compressed air feed pipe to provide compressed air from a compressor to the upper portion of the reservoir while the vent of the stopper is closed, such that the compressed air presses on the stopper and the water is forced by the stopper to escape from the lower portion of the reservoir through an outlet pipe;
• and
• determine a water pumping rate of the water while the water escapes through the outlet pipe;
• and
• controlling the compressed air feed pipe to provide the compressed air at an air pumping rate equal to the water pumping rate,
• wherein the stopper is configured to separate the compressed air from the water and prevent evaporation of the water.

A method of compressing and pumping water, the method comprising:

• raising a stopper slidably disposed within a reservoir to a raised position, wherein the stopper is configured to divide the reservoir into an upper portion and a lower portion, and comprises a closable vent;
• providing the water through a water fill pipe to the lower portion of the reservoir while the stopper is in the raised position;
• providing compressed air from a compressor through a compressed air feed pipe to the upper portion of the reservoir while the vent of the stopper is closed, such that the compressed air presses on the stopper and the water is forced by the stopper to escape from the lower portion of the reservoir through an outlet pipe;
• determining a water pumping rate of the water while the water escapes through the outlet pipe;
• and
• controlling the compressed air feed pipe to provide the compressed air at an air pumping rate equal to the water pumping rate,
• wherein the stopper is configured to separate the compressed air from the water and prevent evaporation of the water.