Quick Drain weighted the valve activates making sure

the valve activates making sure that the gas is instantaneously cut

optional locking casters (Item: 114662) are available separately

It simply floats on the surface of the water and has an 6 pound weight below it that acts like a keel to counteract the forces on the umbrella

Comfortable

Quick Drain weighted the valve activates making sureQuick Drain The fastest and easiest way to drain your hot tub! Quick Drain Features: Easy to use a few quick shakes to prime it and you're draining Fast drains average hot tub in just over 30 minutes Safe requires no electricity, no pumps and no motors 10' hose Flow rate: 10 to 12 gallons per minute (that's about 40 litres per minute) Does not clog Can be used to drain any above groundwater source! Works for hot tubs, swimming pools, pool covers,