How and why to pour vs. scrape?

[blastfrompast]

Appreciate your answers as always. Peace

It works just fine without N2. Atmosphere is 78% N2, and all pure N2 does is exclude the 21% O2.

Check out Vaccon venturi vacuums. That's what we used on the WW Terpenators and vented the discharge to the booth exhaust plenum.

Air hogs, but zero moving parts and NEMA 7, Class I, Div I.