Refrigerant hose that is not made out of rubber. Rapid micron falling compared to rubber.

[@horsth9566]

Another great example shedding light on vacuum related molecular behavior. Thank you Tom!

[@PISTONPRIX]

Friend Tom, how good is that vacuum pump?

[@coldfinger459sub0]

@@PISTONPRIX not good. Extremely slow..
Already burnt one out this is a replacement one
Never get small tiny pumps unless you just want a toy to play with .
I would never use this except out of desperation.

[@PISTONPRIX]

​@@coldfinger459sub0 Thanks you... 👍👍👍👍