I have a Polaris 260 with the following issues:
1) Drive wheels need tread replacement
2) Right drive wheel mounting loose inside the unit, so does not engage drive gear.
3) Right drive wheel gears stripped on wheel side.
4) Intermediate wheel on right (between two large wheels) has loose internal mounting.
5) Bag has holes.
Given this, it would appear it would need a complete rebuild, perhaps even a replacement if the mountings are broken inside.
My pool gets a lot of leaves, twigs, acorns, which the 260 seems to pick up most (but not all) of it. I've heard many robotic cleaners do not do well with larger items. My pool is kidney shaped, about 30 by 18 feet, and about 550 square feet.
I've heard the robotic cleaners are constantly brushing. My pool has a thin blue top layer (almost see through). Could that worn off by too much brushing?
I also want something low maintenance, and easy to clean. If I could just leave it in the water, and it turned itself on automatically, that would be great. I've heard most cleaners you have to insert in the water, and remove when done. I'm not home on a regular schedule, so that could be an issue.
Saving on electricity would be nice with the robotic cleaner. We get gouged on electricity in California ($.25/kWh).
If robotic, I would like to get something lower priced with repair parts available at a reasonable price. I think $1000 is out.
I'm a first time pool owner (three weeks) so sorry for the lack of knowledge on pool cleaners. I appreciate any recommendations you may have.