Question for the Pros

I am using a suction device for pulling clear fluid through the jets of a lexmark style cartridges, and I need to know what is a safe range for setting my air pressure.

I am currently running the suction at about 25 PSI

I am concerned about getting the suction to high where it will damage the jet plate on the bottom of the cartridge.

I am drawing the suction from the bottom of the cartridge, so in otherwords the fluid is passing from the cartridge tank down through the jets.

Please email me with any suggestions:   kent@wallyssupermarkets.com

Thanks,

Kent