3 wire

Hey everyone - looking for help with a simple question. I'm installing a GFCI outlet under my sink for my garbage disposal. The line coming in is a three-wire cable, and the load going out is a two-wire cable. The grounds are already pigtailed together - I know I'll connect that to the ground...

Need to replace my submersible well water pump what size pump do I need? Well Depth 120ft, Casing Depth 82ft, Static Water 50, Diameter 4" looking for a good 1hp that will easily do like 20 gpm any recommendations please