I replaced 80+ year old 4" sand CI pipe with 3" ABS for drain and stack. I started with the second floor master and guest bathroom. However, these both run directly over the living room on the first floor.
The noise is horrendous! I can't emphasize that enough!!! There are a few options to do since it's already installed. I know there's a wrap to cover the plumbing. I've called a few distributors and for how much it costs, I might as well have paid a plumber to come in and install CI pipe. Second, I know there's spray insulation, which should work quite well. Has anyone heard of any products that have been successful at this? Also, I live in Orange County Southern California; any idea where I can buy this stuff in quantity instead of spending $200 on 'Great Stuff' spray insulation?
There's a beam that runs directly next to the joist for these pipes which sticks out of the ceiling about 5". So I'm already going to double up on 5/8" drywall in that section of the wall and ceiling. Don't worry, I'll disguise it well!
Cost and availability are the key concerns here! I've already spent half a day looking online, and I haven't been able to find anything that I've been looking for.
Thanks a bunch!!!