A carbonator tank assembly is disclosed for use in a beverage machine that dispenses a carbonated beverage therefrom. The carbonator tank includes walls defining a carbonator tank interior. A probe assembly is provided for coupling in a gaseous and fluid-type manner to the walls of the carbonator tank. The probe assembly has no floats but includes electrical, elongated probes having removed ends configured to extend into the interior of the carbonator tank and near ends exposed exteriorly. An electronics module is adapt to fluidly enclose an electronics assembly therein and to receive an electrical cable carrying electrical energy from a remote source. Elements within the electronics module receive the electrical energy from the cable and provide it to the electrodes extending from the walls of the electronics module into the carbonator tank. The electrodes and the electronics module are adapted to removably couple to the probe assembly.

A carbonated drink dispensing system includes a carbonation tank, a CO.sub.2 cylinder configured to deliver CO.sub.2 to the carbonation tank at a pressure of between 50 psi and 60 psi, a low-pressure pump configured to pump water into the carbonation tank, and a level sensor configured to determine when the water in the carbonation tank has reached a pre-determined level. The low-pressure pump is configured to stop pumping water when the level sensor determines that the water in the carbonation tank has reached the pre-determined level. The low-pressure pump starts pumping water again after a time delay.

A cold plate includes a cold plate body. A tubing system is embedded within the cold plate body. The tubing system includes a prechill circuit, a plain water postchill circuit fluidly connected to the prechill circuit, and a carbonated water postchill circuit fluidly connected to the prechill circuit.