Most fountains that are designed for outdoor use may splash some, but indoor fountains are engineered not to splash. Also, keep in mind that fountain pumps are actually designed to run 24/7, so turning them on and off a lot is hard on the pump, and will decrease the life of your pump.Ī: Depending on the type of fountain you purchased, this may or may not be normal. Remove the pump and clean it using the directions on our Water Fountain Cleaning Guide. If none of the above works, and your pump is still performing poorly, it could be that it is dirty, clogged, or has mineral deposits inside. You can also use a scotch brite pad or other type of sponge tied around the pump to keep from vibrating. If your fountain has suction cups, you can use them to position your pump securely or use foam strips. If adding water did not help, another factor to conside is that the pump may not be positioned properly causing it to vibrate. Be sure your indoor and outdoor fountains have enough water to cover the entire pump, best to even be sure there is 2 inches of water over the fountain's pump. Depending on the humidity level in the air, your fountain may need to be filled as often as every day, or as little as once a week. A: This is most likely a sign that there is not enough water in your fountain.