Fountains add elements of sight and sound that create a relaxing atmosphere. Fountains are art. Fountains bring a sense of calm and relaxation found nowhere else. A properly working fountain provides the pleasant sound of flowing water that enhances the tranquility and peacefulness of your surroundings, helps block unwanted background noise, and brings a touch of style to your luxury property. As life becomes increasingly hectic, clearly the value of a fountain is undeniable.
Fountains help improve the negative ion content in the immediate area. Negative ions create a sense of well-being as well as fung shui. Did you know that the air around Niagara Falls or another turbulent water sources may contain between 30,000 and 100,000 negative ions per cubic centimeter. On the other hand, the air inside an office or a sealed automobile may contain anywhere from zero to a few hundred negative ions per cubic centimeter 1.
Why do negative ions create positive feelings? It is not exactly understood but ions are molecules that have gained or lost a positive charge. Falling water, such as that from waterfalls and water fountains--create thousands of negative ions by splitting otherwise neutral particles of air, freeing electrons to manifest their vitalizing function. See below reference for more information.
http://www.webmd.com/balance/features/negative-ions-create-positive-vibes