I have a lovely indoor water fountain that I'd stopped using because I had to clean it too often. Now, I use it all the time thanks to a tip from my local florist. Her tip for keeping it clean was to add a little bleach to the water that is recycled. This keeps it so nicely that I only have to clean it every once in a while.
By Marie from West Dundee, IL
Editor's Note: Too much bleach in the water could be a concern if you have children or pets, especially cats who drink out of the fountain. Having said that, bleach is used to clean contaminated water after floods, 1/8 to 1/4 teaspoon of regular unscented 5.25% household bleach per gallon of water should be fine (Source: CDC.gov).
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I have a table top water fountain which I love. To keep it clean, and the water fresh, I add some vinegar every time I add more water to it. My cats also love to drink from this, so it also benefits the cats, since vinegar helps to cut down on the flea problem as well!