I’m not sure vinegar disinfects like some say it does. I put it in vinegar for the probable mineral buildup from soaking in soapy water and then sterilizing by boiling in water. I think that’s why the saline wasn’t coming out properly. I will now will try to soak all my cups and Aerobika in vinegar once a month. When I soaked the cup that seemed to be clogged, I put it in straight vinegar. I don’t remember how long I let it soak but it was at least a half hour or more.