So I need to pick someone's brain. I have a "PNWT", (has Pinnacle on it), that the bubble cap, (the one with the slits at the bottom), broke off at the base of the bubble cap. It still bubbles but the cap rattles. I don't mind the rattle, but the water is turning milky looking. Rinsed it out multiple times, but the milkiness keeps coming back. The only thing I can think of is the cap is rattling and chipping the plastic cap. That really doesn't sound right. Any ideas? Where is the milkiness coming from? I'm kinda leery of using it. Any thoughts? Doc