Thank you to those that offered up advice as to what my issue was. I think I figured it out, so I'll share with you all.
When filling up my tank tonight, I noticed that the outer rim of the top cap had a dent in it. It was not perfectly round. Not sure if it rolled off the table at some point, or maybe I dropped it. But it was off just slightly. I tried straightening it out the best I could and the tank seems to be flowing fine now.
Amazing how that little chance get can effect the vacuum so much
So glad you sorted it out!