We have a humming/vibrating noise around the house, you can hear it mostly in the laundry room. When we touch the wall directly behind the washer, we can feel the vibration. It has been happening for the last 2-3 weeks but it seems louder now. Today, we realized that when we turn on any faucet or the washer itself, the noise and vibration stops until you turn them off again. We are worried there is a leak or some pipe will burst and cause a flood. Please help!