My pool is about 6 to 7 years old along with the Polaris 280 cleaner. Within the past few weeks the cleaner is not doing such a good job anymore as it is not moving and climbing walls as it used to when we first bought the house. The bag is ripped and so I know I need a new one already at a minimum. Is it worth trying to fix the cleaner or should I just break down and buy a new one? I see the rebuild kits online but they are about 1/2 the cost of a new cleaner. I can tell the cleaner has been worked on before because it is missing the top part of the cleaner and the backup valve is cracked as well. It has lots of scratches and looks old so I am thinking this was original to the pool. Is it worth trying to salvage at this point at 6+ years old or just buying a new one? Thanks for your input.