How to Maintain Indoor Fountains
Your indoor fountain can develop algae and bacterial growth, so perform general maintenance on it to help it run smoothly. Keep your fountain pump submerged in water at all times to help circulate the water and keep it filtered. This will also help minimize the growth of algae. Another way to reduce algae and keep your fountain clean is to use distilled water instead of tap water, which can lead to a build-up of minerals. Keeping the pump powered on constantly will also help keep the water clean and prolong the life of your pump.
Keep your fountain pump submerged in water at all times. This will help circulate the water in your fountain and keep it filtered, in addition to minimizing the growth of algae. Your fountain pump may also become dry and burn out if it is not submerged in water consistently. Examine the water level around your fountain pump on a daily basis. This will allow you to become familiar with how often you need to add water to the fountain. Add water to your fountain as needed. This factor will vary depending on the indoor climate in which the fountain is located. For example, if the fountain resides in a warm, dry indoor climate, you may need to add water to the fountain on a daily basis. Keep your fountain pump powered on constantly. This will help keep your fountain water clean and prolong the life of your pump; as turning the power off and on continually may cause the motor in the pump to wear at a faster pace. Ask a friend or family member to help maintain the water level in your fountain when you need to travel. This will prevent you from having to power off the fountain completely. Use distilled water in your water fountain. Using distilled water is a natural way to keep your fountain clean and prevent algae growth; whereas tap water may contain minerals or other metals that can solidify and build up on the walls of your fountain and the pump. Turn off and unplug your fountain. This will eliminate your risk of electrical shock as you clean the fountain. Remove any stones or pebbles from the inside of your fountain. Stones will need to be cleaned before they are placed back into the fresh water. Remove the fountain pump from the fountain. Consult your fountain's manual or contact the manufacturer directly if you are unsure how to remove the pump safely from the fountain. Remove the water from your fountain. Depending on the size of your fountain, you can either empty the fountain over a sink or use a shop-vac to remove the water. Clean your fountain and its components. Use a soft, non-abrasive sponge to avoid scratching or damaging the fountain's interior and working parts. Clean the fountain, pump, and stones using a cleaning mixture of warm water and mild liquid soap, or use a commercial calcium lime removal product. For an all-natural alternative, spray distilled white vinegar on the fountain's interior and parts, then scrub using a wet sponge. Use a toothbrush to clean any small, tough corners or spots that are hard to penetrate or reach with the sponge. Use a soft, clean rag or cloth to dry and remove any excess cleaning mixture from the fountain's interior and parts. Place the fountain pump and stones back into the fountain.  Refill your fountain with fresh, clean water. The procedure for refilling your fountain will vary depending on its size. Pour bottled, distilled water into your fountain or use tap water from a sink. Depending on the size of your fountain, you can refill the fountain from the inside of a sink or use a bucket to transport the water from the sink over to the fountain. Plug in your indoor fountain and power the fountain on. Observe the fountain for a few minutes to make sure the pump is properly re-installed, and that the fountain work efficiently. 
Keep your fountain pump submerged in water at all times. Keep your fountain pump powered on constantly. Use distilled water in your water fountain. Turn off and unplug your fountain. Remove any stones or pebbles from the inside of your fountain. Remove the fountain pump from the fountain. Remove the water from your fountain. Clean your fountain and its components. Place the fountain pump and stones back into the fountain. Refill your fountain with fresh, clean water. Plug in your indoor fountain and power the fountain on. 