It probably wasnt the PO becouse I found the same dark
brown sludge on my fittings. could it be "pipe dope"
type sealer?

Phil Stanhope 84 Westy Tiico

--- Bill Davidson <wdavidson@THEGRID.NET> wrote:
> I've got my new propane tank bolted to the under
> side...
> And I have cut and bent and flared tubing ends...
> ready to connect the tubing and tighten the flare
> nuts...
>
> but a question...
>
> I noticed that when I took the flare nuts apart
> there was a dark colored
> greasy like substance on the threads... and maybe on
> the flared ends of the
> tubing... Originally I though that might be old
> propane decomposed into
> sludge... but now I'm wondering if the previous
> installer put a dab of axel
> grease on the flares.... perhaps it assures a better
> seal???
> Anybody know what that black stuff is on the flare
> ends?
>
> thanks,
>
> Bill Davidson

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