We were getting really PO'd at the Polaris. It was not going into the shallow end much, the hose was always tangled, and when it backed up and got stuck on the swim out or step it wouldn't get itself free. DH was threatening to buy some other sort, this is Polaris 380, and was pressuring me to do the research to find a new product to replace this one.
Instead, we took it to Warehouse Pool Supply for a free check-up. They had told me that if the hose is more than maybe 3 years old it was getting stiff and needed to be replaced. I bought one online, saving a few bucks, so I felt a bit bad that I was going to use their free check up service. They recommended some new bearings and belts. When we put the new hose on, we found the pressure regulating disk was no where to be found. That may have been what lost the power for the old dog. With all the new parts and the pressure disk and hose the Polaris is running like a champ. We also invested in a new bag with the zipper closure and a silt bag as well as we get a lot of sand in from the waterfall.
Wow, the pool looks great! After a brushing and vacuuming that was needed from having the Polaris out of the pool for so long, the Polaris has managed to keep the pool spotless.
So, if you are having small issues with your Polaris you might want to let the pros do a check up. (Not sure if Warehouse Pool Supply now bought out by Leslie's will still do the free check up but it appears that they are more like Warehouse Pool than like Leslie's in their manner of operation so I am hopeful.)