How do you  remove calcium deposits from fountain?
 Turn the water off and remove any rocks, pebbles or other decorative pieces that may be inside your fountain. Toss out any debris such as leaves, twigs and insects from within your fountain. Clean the inside of the fountain.Using a soft, non-abrasive sponge, scrub the inside of the fountain with a calcium lime remover. You can also use a mixture of vinegar and water to remove calcium deposits. Remove the pump from the fountain and disassemble it.Calcium buildup can collect inside the pump, reducing its overall performance. 