This is one of those spa machines you put over the bathtub to turn it into a spa. When do I have the time to use this? The kids don't even know what it is. They call it the bubble machine. This is the purpose they think this thing was invented for. Of course they think everything is invented for their own personal enjoyment. To remedy I bought a portable hot tub. It sits in the back yard, and the kids call it a pool. I'll keep you all posted on other inventions apparantly made for children, not intended for adults.