Bought 2 Appion core tools, BluVac, 1/2" Appion hoses and cannot get below 2000 microns on a 2.5 ton resi split.
Came home and nothing holds vacuum!!!!!
Right now had hose with vac pump on 3/8" and BluVac on 1/4" end, blank off pump with 80 microns and soars quickly with no end in sight.
Basically same with other hose, both CRTs and the metal vac connection piece.
It could be the blank off on the pump, but tried manifold, regular hoses and no difference.
And I am using Nylog.