Unplug the hot tub's power cord or turn the power off.
Pull the handle of the main drain valve out. Turn it until about 1 inch of the drain tube is exposed. On some models, you may need to only twist off the drain cap.
Twist off the drain cap located on the handle.
Connect a garden hose to the end of the drain tube and tighten it.
Direct the open end of the garden hose to a drain.
Push the garden hose and the drain tube back into the valve opening to start draining the water. Gravity pulls the water through the hose.