I have a spa that is attached to and shares water with my pool. Unfortunately, it collects a ton of dirt, sand, and other debris at the bottom. Being only 6 feet in diameter with a seat leaving an ~3 ft diameter center, it's very difficult to keep clean. Does anyone have any suggestions on items that could help? Obviously, my automatic pool cleaner doesn't work well in there, and even the manual pool vacuum is too large to really do a good job. For manual stuff, I suppose I could just use the hose directly and either get in so I can reach, or duct-tape it to a pole, but I'd really like a more automated approach. Is there any kind of pressure-side automatic cleaner that is designed for spas? It seems that should be possible considering the power of the spa jets. It would have to be really small and climb very well so that it could get both the seat and floor.