Portable and automatic bottle filling/capping apparatus and methods

An automatic, portable water bottle filling apparatus includes an elongated frame that defines a continuous conveying path with opposite first and second ends; a conveyor system that moves bottles along the conveying path; a water filling station adjacent to the conveying path second end that is configured to fill an empty bottle with liquid from the user's water source; a capping station positioned downstream from the water filling station that is configured to close a filled bottle with a cap; a sensor system configured to detect the presence of an empty, uncapped bottle at the water filling station; and a controller that automatically controls operations of the water filling station, capping station and conveyor system in response to signals received from the sensor system.