I have a 14ft intex ultra frame pool. I have dirt and a few leaves that have begun to accumulate on the bottom of the pool. I would like to get a vacuum, but do not know what to get. I have looked at the hayward aquacritters and the lil'shark. I am open to any other suggestions. I do not want to spend more that I need to for my 14ft pool. I have an intex sand filter and pump.