Fluid level sensing system and method

A method of sensing a first amount of a liquid in a container comprising:

• providing:
• a container configured to hold the liquid;
• a conduit having a length positioned relative to a portion of the container where a level of the liquid in the container changes when liquid is added to the container or liquid is removed from the container, the conduit in fluid communication with the container thereby allowing a second amount of the liquid to enter the conduit that is proportional to the first amount of the liquid in the container;
• an outlet;
• and a valve in fluid communication with the conduit and the outlet, wherein the valve is selectable to allow the second amount of liquid in the conduit to pass to the outlet, the second amount of liquid passing to the outlet being proportional to the first amount of the liquid in the container;
• selecting with the valve to allow the second amount of liquid in the conduit to pass to the outlet;
• measuring the second amount of liquid in the conduit passing through the outlet;
• and
• determining the first amount of the liquid in the container based on the measured second amount of liquid passing through the outlet.