Material dispensing system with gas removal

A method of dispensing a mixture of two fluids, the method comprising:

• drawing a first fluid from a first supply source, the first fluid comprising a first liquid;
• drawing a second fluid from a second supply source, the second fluid comprising a second liquid;
• moving a first metering cylinder and a second metering cylinder in unison from a first stroke position to a second stroke position, the first metering cylinder fluidly connected to the first supply source and the second metering cylinder fluidly connected to the second supply source;
• simultaneously dispensing each of the first fluid and the second fluid from a dispensing head fluidly connected to the first metering cylinder with a first fluid dispensing connection and to the second metering cylinder with a second fluid dispensing connection;
• automatically closing the dispensing head with a controller to stop dispensing of each of the first fluid and the second fluid based on a position of a piston of each of the first metering cylinder and the second metering cylinder;
• drawing a portion of the first fluid back into the first supply source, wherein drawing the portion of the first fluid back into the first supply source comprises opening a first recycling valve with the controller, the first recycling valve fluidly connected to the system at a position between the first metering cylinder and the dispensing head;
• and
• drawing a portion of the second fluid back into the second supply source, wherein drawing the portion of the second fluid back into the second supply source comprises opening a second recycling valve with the controller, the second recycling valve fluidly connected to the system at a position between the second metering cylinder and the dispensing head.