Just want to remind people that many things can cause tearing, allergies to foods, environmental allergies, an improper pH, a low grade infection, or even too many minerals in the water. The Gerber water worked for Joey when he was a puppy, but at around 11 months, I didn’t need to use the Gerber water anymore. His eyes were clear until we did a food change and then he had a terrible tearing problem, but switching back to his regular food cleared it up. If your dog has just an occasional eye bugger, I wouldn’t worry about it. Tearing is bad, when the hair on the face is wet most of the time, and this can lead to other things like yeast infections. The Gerber water is a safe easy fix if minerals are the problem and to really test it, you should give it at least a week without any other water, if the eyes are much better than your dog might be sensitive to something other than the minerals in water.
Here some more information on tearing:
Tear Staining: The Causes & Cures