Reductant fill system

A method for filling a reductant tank, the method comprising:

• supplying a reductant to a receiver via a pump fluidly connected to an off-board reservoir, wherein the receiver is connected to a first valve in the reductant tank through a reductant supply line;
• generating a signal, by a reductant level sensor, indicative of a level of the reductant in the reductant tank;
• and
• issuing a command, by a controller, to purge a stranded reductant in the reductant supply line, based on the signal generated by the reductant level sensor.

A computer based system for filling a reductant tank comprising:

• a communication interface communicating with a memory;
• the memory configured to communicate with a processor;
• and
• the processor, in response to executing a computer program, performs operations comprising:
• supplying a reductant from a receiver through a pump fluidly connected to an off-board reservoir, wherein the receiver is connected to a first valve in the reductant tank through a reductant supply line;
• generating a signal, by a reductant level sensor, indicative of a level of the reductant in the reductant tank;
• and
• issuing a command to purge a stranded reductant in the reductant supply line, based on the signal generated by the reductant level sensor.