If you do nothing else as a result of reading this blog or picking up one of the reference books, put your pet on a healthy diet and buy a water-purifying system for your home. Bottled water can be healthy, although not great for the environment. The system is a great investment for your home, your pet and your health as well.
I purchased a reverse osmosis drinking water system called a Zeta Rod (www.zetarod.com) through my plumbing company. I love it. The Water Purifying System-Zeta Rod blog has more details. ;)