To empty is pretty easy, you fasten your stopper caps to the valves on the inside of the spa, this will stop the water from escaping. Now remove the pump by loosening the connectors and attach a cap to outlet A. (These caps come with hot tub) Fix the hose adapter to your garden hose and attach both to connector B, make sure that the other end of your hose is at the drain then remove the lower cap from the inside of the spa. Once it’s empty make sure you dry it properly before you pack it away.
The cost of running an inflatable hot tub depends on a few major factors: electricity, water, filters, cleaning and chemicals. To a lesser degree, other factors will contribute to hot tub maintenance costs, like its size, where you set it up, how often you use it and how strict you are about cleaning it. Electricity costs vary by state, so running a hot tub may be less expensive in Louisiana residents than in Alaska or Hawaii.
Aside from the standard water filtration, Hawaii Hydrojet comes with 2 water treatment system: Hard water and Saltwater. The built-in hard water treatment system helps keep the water from drying up your skin for soaking for some time. The saltwater treatment system, on the other hand, breaks down salt and turns it into natural and safe chemicals that help keep the water clean.
If you do like to move it around regularly, which is the strongest advantage for inflatable hot tubs, you have to deal with draining, deflating, moving, inflating, and refilling your tub every time you want to move it. The deflating and inflating isn’t as big of a deal if you have an air compressor to hook up to it, or if your hot tub came with its own, but it still takes a while (and a good deal of water) to refill that hot tub every time, and longer yet to get the water hot.