408isthebay
Active Member
is it possible my vac is pulling more than -29.5 hg? my gauge is wildly inaccurate so i just leave the pump on for the whole time im purging. I have one of those vac-it systems from ebay and a 1.5 cfm 30 micron pumpWe get aromatic oils at -29.5" Hg and 115F.