I'm renovating my kitchen, and removed the existing soffit so that I may extend height of my kitchen cabinets. I discovered that there is a PVC waste pipe that drains water from the upstairs bathroom.Before I finish of the top of the cabinet with crown moulding, I would like to deaden or minimize the sound of 'swooshing' water each time the toilet is flushed or the sink is used. Can anyone recommend a solution or approach to eliminating this sound? Is there a type of wrap that may be placed around the PVC?
TonyM