From Where Did Water Fountains Originate?

The One Cleaning Solution to NEVER Use On Your Wall Water Fountains
The One Cleaning Solution to NEVER Use On Your Wall Water Fountains It is essential to carefully maintain water fountains for them to perform properly. It is easy for foreign items to find their way into outdoor fountains, so keeping it clean is vital. Another factor is that water that is subjected to sunlight is vulnerable to growing algae.
A thorough cleaning every three-four months is ideal for garden fountains. Prior to cleaning, all the water must be removed. Then use a soft towel and mild cleanser to scrub the inside. A useful tip is to use a toothbrush if there are tiny hard-to-reach spots. Any soap residue that remains on your fountain can damage it, so be sure it is all rinsed off.
It is highly advised taking the pump apart to better clean the inside and remove any plankton or calcium. Soaking it in vinegar for a time will make it easier to scrub. Mineral or rain water, versus tap water, is ideal in order to prevent any build-up of chemicals inside the pump.
One final tip for keeping your fountain in top working order is to check the water level every day and make sure it is full. Permitting the water level to get too low can result in damage to the pump - and you certainly don't want that!