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On 2/24/2014 5:06 PM, Wayne.B wrote:
On Mon, 24 Feb 2014 16:46:48 -0500, wrote: I am starting to prefer the teflon paste. === Yes. I just finished a fairly complex plumbing job on the boat (new distribution manifold for 4 zones of A/C cooling water). It has more than 15 individual pipe joints and is driven by a 1 hp pool pump so there is lots of pressure and lots of opportunity for leaks. Knock on wood, everything worked fine with no leaks first time it was powered up. I've always used teflon tape previously but I've had my share of failed joints with that. Teflon tape is tricky to use properly. It is often used in the high vacuum industry for all the feedthrough fittings that need to seal against a vacuum equivalent to 200 miles in space to atmospheric pressure. Too little tape, it leaks. To much it leaks. One secret is to wrap it in the direction of the thread, so when you are tightening the connection fitting, the tape is not being stretched back against itself. We couldn't use Teflon paste because it never completely cures and would outgas into the vacuum. |
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