I moved in this summer to my house with my first pool. The Polaris booster pump was leaking a fair bit but it seemed to work well and cleaned the pool.
Based on advice, I bought a new seal kit. (Pool store guy said don't bother with a new big or little O-ring, now I don't know). Leak solved, or so I thought. I hadn't used the Polaris in a few weeks because the kids were vacuuming the pool manually.
Anyway, I went to start the booster pump and it just hummed for about 5 seconds and shut off. I can turn the motor by hand about 5 degrees back and forth. I disassembled the pump again and I can still only turn the rotor about 5 degrees, no further.
Here's a pic from before. I don't remember the shaft being as corroded as it is now:
Here's what the shaft looks like now:
Can this be saved or do I need a new motor? Should I replace the whole booster? It seems very odd that the motor is not siezed; I can move it back and forth about 5 degrees, almost like there was something stuck in it.