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 Clean your fountain in the sink or for wall fountains and large fountains, take a bucket of water and a non-abrasive sponge to clean the inside of the pan. 2  We recommend using a mild soap or a product such as CLR on the inside of the pan to remove any buildup.leaning your pump is very important as this is what makes the fountain tick! Your pump will be the first thing to see buildup because this is what the water is flowing through and the pump is what filters the water. 1  Once your pump is removed from your fountain, place your pump in the sink to clean.