Re: re vac forming

In a message dated 6/16/99 2:36:14 AM SA Eastern Standard Time,
timg@... writes:

<< I have done some composite wing vacuum bagging and used one of the old
commercial freon tanks as a vacuum reservoir and it held 24" hg no problem.
I now use a section of 4" PVC pipe with endcaps for my vacuum tank and I
have tested it to 24" hg with no problems. >>

Ok now you are getting me creative :), how about a cacuum system using PVC
tubing including the reservoir tank, lines, What is hg? and can you give me
an idea what the 24" hg translates to? Please bare with me I don't have
much experience with vacuum systems so I am learning.

Thanks,

Mario