Avery was getting thick dark tears and stains. I read every post about the problem and debated quite a few solutions. First I purchased the tear stain removed, but it doesn't work that great and it doesn't prevent the problem. I read about people feeding their YT's distilled water, but I also read that distilled water is not good for dogs.
So, I purchased a PUR Water Filter for my faucet, and TAH-DAHH, way less tears! Nw he just gets little "eye boogies" from time to time.