I have 2 sump pumps at opposite corners in my basement. The pipe from Pump "A" follows the perimeter of the basement and exits the basement right above Pump "B" (it's a long distance). The 2" pipe is set on a slight downward slope and has a small 90 degree downward bend at the halfway point. The problem is that when the pump pumps water, I can hear it flowing through the pipe very loudly for a long period of time. Is there a way to eliminate this nuisance?