It's a gadget for the pool. I want one of those electric vacuums that run all the time. You just put it in and the vacuum goes all over the pool. No work for me at all. Do they work?
Are you talking about a pool sweep? We've had one for years. Yes, they are great. However, trust me on this, things will happen. Depending upon the shape of your pool, they won't get every corner, either.
I'm not sure if that is what they are called. I want a vacuum that I don't have to move back and forth. I saw one online called Diver Dan and it vacuumed for you.