I'm excited for the meeting this weekend. Hope for a great turnout. The meeting doesn't need to be adult beverage free. My mom said she is buying beer. We will have lots of food. All are welcome!
I would pull the pump out and clean it and remove the impeller and re set it. Sounds like maybe the impeller is jumping a little. Could be a crack in the impeller but hope not.
I just put a IM mighty jet in my 25 lagoon and man what a quiet and powerful pump. Price is great too for a controllable small pump.