I have a Hayward super 2 pump, cartridge filter, 1hp, brand new Emerson motor which is exactly the motor I had prior.
I also needed to fix the leak at the pump hole closest to motor. In doing so, I was not able to stop the leak so I called a professional. He wanted and would not accept what I wanted him to do which was put a fitting over the 2" port instead of inside the port. His solution was to replace the jandy valve because there was not enough space inside the port hole to put the 2" pipe. I told him to get a fitting to fit over my jandy valve port but he wanted to replace the jandy and some piping. You know make more $$.. What he did was: he replaced my old 2" 3-way jandy valve, which worked great, with a 1½" 3-way jandy. My older jandy valve is also much larger in size. With that new jandy valve, he put the 2" pipes over the ports which I requested with my old valve in the first place. Guess it was easier to get a smaller valve so he could put the 2" piping over the valve.
The leak was repaired however there was a noise much much louder than previously ran with old motor and no leaks.
Question: is the new 1½" 3way valve the problem to the very loud noise or the motor? Remember, the replaced motor is the exact make and model as previous. Also, the noises seem to be from the water going through the pipes or maybe the motor itself, I don't know!. Is this the jandy's fault??