An accurate fuel tank sender will allow the operator of the vessel to safely monitor the vessels fuel level(s). When properly installed and maintained a good sender will allow for proper trip planning and safe return to port...
Different boats may have different fuel tanks. The rate at which the level of fuel drops in the tank is directly dependent on the tanks design and the engine(s) fuel consumption. A non-rectangular or irregular shaped tank may cause the surface level of the fuel to drop faster as the fuel level approaches lower levels. These facts need to be taken into consideration before and after the sender installation and use of vessel. It is best to install a fuel tank sender as so to leave a "reserve" or extra amount of fuel in the the fuel tank after the fuel gauge level reads "Zero" or "Empty".