Okay, so my Polaris pump was leaking like crazy and I was about to lose my mind. Found this O-Ring Replacement Kit and decided to give it a shot.
First off, installation wasn't too bad. Took me about 2 hours total (I'm not exactly a pool pro). No instructions included, but YouTube saved me – seriously, watch those videos first!
The kit comes with everything you need: shaft O-ring, volute O-ring, and pump shaft seal. Bonus points for including extra parts – always handy.
For the first 45 days? Perfection. No leaks, pump running smooth. Then... disaster struck. Started leaking about 20 gallons per hour. Not cool.
Some people in the reviews got years out of theirs though, so maybe I just got unlucky? Or maybe it's because I didn't rebuild the motor while I had it apart (pro tip from another reviewer).
Bottom line: It'll fix your leaky pump fast and comes with good parts... but might not be a permanent solution. For the price though? Worth trying before shelling out for a whole new pump.