Hi I hear people having problems with a lot well I have never tried this but it is a way to (burp) your bottle if its glass.
There is a secret to burping water bottles so they don't leak. If you get the glass kind, make sure you fill it all the way to the tippy top, put on the screw lid, turn it in place and shake it to get all the air bubbles out of the sippy spout. Tap the ball or opening a couple of times to be sure the water is flowing correctly. Then, without turning it over again, place it on your cage.