Pump with Reduced Number of Moving Parts

A pump comprising:

• a first fixed valve having a first passageway extending therethrough with a first end and a second end, the first fixed valve being configured to allow a flow of a first fluid from a first fluid source through the first passageway from the first end to the second end thereof and at least partially restrict a flow of the first fluid from the second end to the first end thereof;
• a pumping structure in fluid communication with the second end of the first passageway of the first fixed valve, the pumping structure comprising a body and at least one fluid level indicator coupled to the body;
• a second fixed valve having a second passageway extending therethrough with a third end and a fourth end, the second fixed valve being configured to allow a flow of the first fluid through the second passageway from the third end to the fourth end thereof and at least partially restrict a flow of the first fluid from the fourth end to the third end thereof, the third end of the second passageway of the second fixed valve being in fluid communication with the pumping structure and the second end of the first passageway of the first fixed valve;
• a second fluid source in fluid communication with the body of the pumping structure, the second fluid source being configured to drive a second fluid into the body of the pumping structure and draw the second fluid from the body of the pumping structure;
• and
• a controller in operable communication with the second fluid source and the at least one level indicator, the controller being configured to control the second fluid source based on a signal generated by the at least one fluid level indicator.