What did you do to your pool today?

It was a busy weekend of trying to clear the pool after opening Friday. And drinking the pool water finally caught up to one of my idiot dogs so I was dealing with a sick dog on top of pool duties. But we've finally turned a corner - dog is feeling better and pool is looking much better. :)

I just hung a sock of CYA and dropped in the robot.
 
Have you tried cleaning the fan with compressed air?

Something I wish I'd known earlier, before I broke a few fans in awkward places (like inside laptop computers): Fan bearings are designed for a particular range of speeds, and they can fail if they're run above that range.

So if you clean fans with compressed air, turn off the fan and hold the fan blades still while you do it. As satisfying as it is to hear that "Whee!" as you spin a fan way up, it will last a lot longer if you don't do that.
 
Had one time last year the fan on the RJ screamed at me for a minute. A quick, light fist to the box stopped it. Screaming is back, fist did not stop it...I ordered replacement fan.
Fan replacement done. Absolutely silent. Old fan clean as a whistle...bearings went bad.