The Master Spas Freeze Plug Kit contains a plug set that works on most spa pumps. This can be loosened to drain any trapped fluid within your pump. Replacing a broken pump ? Make sure to get new freeze plugs as well.
This is a copper jumper strap normally used with the ground wires in the spa. These are mounted on the back of the pumps connecting the ground wire. Is part of the connections from the heater to the PC Board.