Cutting and joining plastic pipe

摘要

Plastic pipe, whether PVC or ABS, is the go-to DWV (drain-waste-vent) option in most houses today, replacing cast iron in all but high-end construction. There are good reasons for the popularity of plastic DWV pipe: It's relatively cheap, it's light, and its smooth interior isn't prone to clogging. The only common complaint is that it can be noisy in comparison to cast iron. While I personally like the sound of functioning drain lines (it beats the silence of nonfunctioning ones), some people don't like to be reminded that their house has indoor plumbing. But this is easy enough to deal with in the design stage, if you remember to include plumbing chases that are large enough to stuff with sound-absorbing mineral wool.