@lorifilipek Oh this is just dumb. So I said yesterday that the new compressor and new Sprint cups worked like a charm. haha. Today I did my nebulizing and after 15 minutes I still had about 2 ml left in the cup and it was again foamy. This is a brand new compressor and a cup that has been used maybe 3 times tops. I will call them tomorrow and see what they say. I am ready to throw in the towel on this Vios Green system. I'll let you know if they have any good suggestions. Oh...and I have soft water with a filtration system.