minimum hg to filter through .22 membrane filter

[Leoterelli250]

I am currently using a glass filtration system with membrane disc filters. I mostly use .45 um disc filter papers and everything is smooth and fine. However, recently I got some .22 um disc filters and my vacuum pump doesnt seem to be able to push the finish product through it. I have an air admiral that provides a max of 20 mmHG i believe. Would getting another vacuum pump that provides closer to 30 mmHG solve this issue?

[Plate Smacker]

20mm/Hg converts to 0.787in/Hg. That is no where near even 1 in/Hg.
A 0.2um can filter around 5in/Hg, but I stick around 10in/Hg
You would need 127mm/Hg to be 5in/Hg.
You need a far stronger pump bro.

[THX]

I am currently using a glass filtration system with membrane disc filters. I mostly use .45 um disc filter papers and everything is smooth and fine. However, recently I got some .22 um disc filters and my vacuum pump doesnt seem to be able to push the finish product through it. I have an air admiral that provides a max of 20 mmHG i believe. Would getting another vacuum pump that provides closer to 30 mmHG solve this issue? If you put the filters upside down they won't filter or it will go really slowly. Most people I know use handheld brake bleeders.