OK, this is potentially a dumb question. On the outside of my house there are a couple of pvc pipes coming out. They have a 90° elbow attached to them and point at the ground. What are they for? There ...

NEW: A Uni-Bell PVC Pipe Association official has a rebuttal to the Beyond Plastics report covered in this story. Read the detailed update here. Bennington, Vt.-based Beyond Plastics, a nonprofit ...

Joining a PVC pipe to a pipe fitting requires special primer and cement that melts the surface of the PVC before fusing the pieces together (like welding metal) to make an airtight bond. Here's a ...