The pump is just to aid the free flow of air from one point to the other. High pressure or vacuum is not needed. I am in Germany. Any suggestion of where I can get this would be nice. Thank you.
You forgot to mention any detail! Depending on the needed air flow volume, you may find some pump in a car worshop (membrane pump) or just take some vent. For some more specific answer, some detaile question is needed. Else do not bother the community.