I have a robokleen which I love. It doesn't attach to the pump so you don't have to hook up the hoses which is a plus. I just put it in and it does it's thing. It has a long extension which floats on top of the water. I believe it will run for 3 hrs. All the debris goes into a fabric filter which you clean out and reuse. Search around for the best deal because I've seen them run from $249 to $399. Some have complained of having to send it back to the manufacturer but I've not had any problems yet and I got mine last Summer. I make sure that I put it in just like the directions say. It is a bit heavy so you do need to be able to handle its weight. I'd guess its about 10 to 15 lbs. Another must have that I would never go without is a pool skim. it sucks everything on top of the water into a net which you can empty out as often as needed. Here is a link to a web site that sells them. http://www.thepoolskimmer.com/ I would never go without one now that I've had it.