Hi,
I’m looking into buying a new (ebay=used) vacuum pump. There are both oil filled and dry membrane pumps in the size and price range I need. What are the are the pros and cons of the two systems? I’ve read that the oil filled ones can smoke, which would be a show stopper for me. Some of the units available have smoke suppressors attached. Do they work 100 % or will I still need to vent that outside?
Thanks in advance.
DB