Multichannel liquid delivery system

A method of delivering a delivery liquid to a destination, the method comprising:

• opening a valve that connects a hydraulic liquid conduit of a liquid delivery system to a hydraulic chamber of a selected rigid reservoir of a plurality of rigid reservoirs of the system, a delivery chamber of the selected rigid reservoir containing the delivery liquid, an interior space of each rigid reservoir of said plurality of rigid reservoirs being divided by a flexible diaphragm into the hydraulic chamber and the delivery chamber, the diaphragm being impermeable to a hydraulic liquid and to the delivery liquid;
• and
• operating a hydraulic actuator of the system to apply pressure to the hydraulic liquid in the hydraulic liquid conduit to force the hydraulic liquid into the hydraulic chamber of the selected rigid reservoir, distally pushing the diaphragm of the selected rigid reservoir to force the delivery liquid from the delivery chamber of the selected rigid reservoir into a delivery conduit that connects the delivery chamber to the destination.

A method of delivering a delivery liquid from a source to a selected rigid reservoir of a plurality of rigid reservoirs of a liquid delivery system, the method comprising:

• opening a valve that connects a hydraulic liquid conduit of the system to a hydraulic chamber of the selected rigid reservoir, a delivery chamber of the selected rigid reservoir to be filled with the delivery liquid, an interior space of each rigid reservoir of said plurality of rigid reservoirs being divided by a flexible diaphragm into the hydraulic chamber and the delivery chamber, the diaphragm being impermeable to a hydraulic liquid and to the delivery liquid, the hydraulic chamber being initially at least partially filled with the hydraulic liquid;
• and
• operating a hydraulic actuator of the system to apply suction to the hydraulic liquid in the hydraulic liquid conduit so as to draw the hydraulic liquid out of the hydraulic chamber of the selected rigid reservoir to proximally retract the flexible diaphragm of the selected rigid reservoir to draw the delivery liquid from the source into the delivery chamber of the selected rigid reservoir via a delivery conduit that connects the source to the delivery chamber.