The seldom seen green flash occurs just before the last part of the sun disappears from view at the end of the 15 second clip. According to NASA, the almost-mythic spectacle is caused by the atmospheric bending and scattering of sunlight.
There are some products for the fountains which remove the suds easily. They are found in the market and they are dissolved in the substances that cause the problem. The organic material left on the tap of the fountain mostly causes the suds. You can use the towel to soak the suds from the place. To remove the soap suds you can use the wet vacuum cleaner gently. You can use silicon which is a great anti foaming agents. Try to add little bit of salts that also prevents the growth of the suds. You can also use vinegar. Just a capful of vinegar is enough for a wall fountain to remove the suds.
1 You can use furniture polish to clean natural copper fountains. 2  Vinegar is usually effective at removing calcium and lime buildup when the fountain is cleaned regularly. 3  For severe buildup, however, a special calcium, lime and rust removal product can help restore the original beauty of the fountain.. Remove the pump cover and remove any large debris from the inside with your hands. Use an old toothbrush to clean and remove small deposits of algae and mineral buildup in hard-to-reach areas.