Quick Drain - The fastest and easiest way to drain your hot tub!
Most hot tubs have drains built into them which tend to be slow...around 3 hours in some cases. As the tub drains, dirt and debris in the water tends to settle on the seats and floor of the hot tub; forcing you to crawl in and clean it out manually. This isn't the ideal method to drain your tub for the periodic water changes.
An alternative method is to use a submersible pump. These certainly make fast work of draining your hot tub but again, the dirt and debris remains settled on the seats and floor.