Flip the circuit breaker that provides the spa with its power to the "Off" position.
Open the niche door, which is located at the base of the front side of the panel. The drain is located here.
Pull the drain hose out about 12 inches.
Remove the cap from the drain hose, and then attach a garden hose. Turn the valve handle about one quarter of a turn counterclockwise.
Wait several minutes as the water flows from the spa through the hose.
Close the valve and remove the garden hose when the water flow stops.
Replace the cap. Push the hose back into the niche.
Flip the circuit breaker that provides the spa with its power back to the "On" position.