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.
#3 â Add 2 tablespoons of a low-sudsing dishwasher detergent (such as powdered Cascade or Calgonite) and 1/2 cup of bleach. Some recommend adding these both to the water in one step, while others make it a 2-step process: first clean once with the detergent, then clean again afterwards with the bleach.