Pools can be really expensive, not just to construct but also to keep. Still they are a wonderful addition to the home. If you are looking for a bit of inspiration take a look at the article I wrote on "Stunning Swimming Pool Designs" - http://hometipster.com/stunning-swimming-poo... This should give you some ideas.
Hi Sharron... it looks to me as if this is the pool cleaning device. The attach to a hose and then you just turn them on and the plate that sits on the bottom automatically crawls around cleaning up any debris.
Have a great day Phil - Graham