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Re: Daco manifold leak

Posted By: James
Date: Thursday, 18 November 2010, at 1:35 p.m.

In Response To: Daco manifold leak (John Dragun)


Call SVP

> Ok just got an old plant from a shop, was in
> storage for a while, set it up, cleaned and
> inspected rings all looks good. Start up the
> pump and cannot pull more that 50
> microns.....as soon as I shut the stopcock
> to the vacuum gauge, she rockets up. I check
> the fill gauge and close the stopcock there
> to see if there is a leak beyond that. The
> level moves a tiny bit after 8 hours or so,
> but not much at all. I figure the vacuum
> gauge is the culprit. Remove it clean up the
> o-ring, no cracks and nice and soft. Put it
> back together and the leak was WORSE! Did it
> all again, hot soapy water on the o-ring
> wiped down outside of glass. The metal
> sensor doesn't look perfect, but I have
> never used one like this before. So the
> questions: What size are the O-rings? Can i
> get one of the kits on Ebay of Viton that
> are in English measurements (1/2, 3/4 etc.)?
> Is there something i am missing with this
> metal to glass connection? AGH!!!


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