Please rate and comment! Teflon tape is great on tapered pipe threads. It's inexpensive, seals and lubricates the pipe threads, and is easy to apply.... oh wait, except for that last part. Greg shows how to apply the teflon pipe thread so that it DOES go on easy and in the right direction, and doesn't unravel when you insert the pipe into the recptical. For more free videos and do-it-yourself plumbing information go to http://DIYplumbingAdvice.com