The pitcock drain value is located on the lower left side of the radiator,you might need a pair of pliers to turn the drain.The coolant will drain out of the hole in the radiator's lower left ruubber...
I would only have it repaired if a tank had a leak and it could be welded, (some can't nowadays because they have plastic tanks) which is cheap. Recoring one is almost the same as a new one, and they...
It is in the front behind the grill. It cannot be filled directly. Add coolant/ antifreeze to the "jug" on the passenger side of the engine compartment.