cut your pipe to length, clean off any burrs with a knife. apply cleaner (acetone), then primer, then glue, to both pieces. immediately push together, twist about a 1/4 turn, hold for about 30 sec (longer for larger diameter pipe), wipe off excess with a rag. an easy process once you've done a few. after it's dried you can clean up any excess blue using a little bit of the cleaner on a rag. i have used pipe under pressure, within an hour after glue-up, after the chemical smell was gone. good luck.