Alright momma's, need some in site! I went to my local Walmart and they were out of the RTF Similac Pro Sensitive so I got the powder. Well, with the same exact ingredients I wasn't too worried. Well I make my LOs bottles according to the directions and he's spitting up almost everything even after having him rest 15-30 minutes after a feeding. When he got the RTF there was absolutely no spit up. He doesn't have reflux. I'm at a loss with it. He is on the puree Gerber baby foods with no issues. It's just the powder formula. Could water be the issue?