Quick Drain is a hand powered hot tub vacuum that is primed by a few shakes of the unit in the water to start the natural flow and suction action. Quick Drain can empty the average 335 gallon / 1268 liter hot tub in about 30 minutes with its 10 – 12 gallons per minute flow. With a wide, 1.5 inch orifice, it can easily suck out pebbles, rocks, sand and debris. It comes fully assembled for the customer and ready to use.