Glue a 1-1/2-inch PVC x 3/4-inch FIP adapter (A) onto a female PVC trap adapter (B). Note: This allows you to attach your shop vacuum to 3/4-inch pipe. The barbed fitting (C) connects to 1/2-inch ...

Q: On my top floor the waste stack has a hub with a 1 1\\2 -inch fitting with no threads. 1 1\\2 inch PVC slides in snug and tight. Can I glue it? -Jim T. A: You can’t glue PVC pipe directly to ...