View Full Version : Is there a break-in period for new return pumps?

01/22/2011, 07:30 AM
I recently got a Sicce synchra 4.0 it had a annoying hum/vibration noise. I talked to the sicce rep he advised me to return it. Got another, same deal. Will it quiet down after a few weeks?

Would 3/4" vinyl be quieter then 1"? Or does that not make any difference?