Quote:
Originally Posted by Tristan Lall
Regarding Teflon tape, you actually do want to be stingy. Just wrap it once around the threads (a couple millimetres beyond a full turn), such that the cut end of the tape is not bunched up by the tightening of the fitting. Leave at least one thread un-taped on the open end of the fitting.
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From experience, I find that this tends to depend on the quality of the tape itself. The higher quality (i.e. thicker and more durable) it is, the less wraps you'll need; the lower quality it is, the more you'll need.
One thing to remember is to wrap the tape in such a direction that tightening the threads continues to stretch the tape, rather than make it bunch up.