My attached spa has a 2 hp air blower, which I was told did not work when we inspected the pool when we moved here. I got bored the other day and looked to see what was wrong with it. I opened up the pumphouse subpanel, and found one of the wires came out of the blower's breaker. Re-attached wire to breaker and fired the thing up, and it works, but it's LOUD! This thing sounds like a large shop vac, which wouldn't be a problem if it were inside the pumphouse, but the blower is mounted inside a fake rock about 4 feet from the spa Is it normal for these things to sound like that? I took the cover off, and the impeller is a little rusty, but not too bad and nothing else is visibly damaged. BTW, the blower supplies air to 6 in-floor nozzles in the spa, the jets get air from a venturi setup.