I’ve used the positive air side of my diaphragm vac pump at 30 psi in my cls to do what you want to do. I say do it up, it’s safer than what I did too cause it’s an inert gas. Here’s a pass thru a. c. And d. e. The Pepsi challenge/etho color remediation thread - #56 by GroovyOctopusLabs that’s the result
I used these 1.5×2 inch triclamp thingies I got from glacier tanks as carts for the powders