Common organic causes include scale, algae, âpink slime,â white water mold and vinyl liner mold. The Langelier Saturation Index measures the corrosiveness and neutrality, or scaling ability, of water. Water, by nature, âwantsâ to be neutral or balanced.
Joanna J. K. Rowling is 51 years old (birthdate: July 31, 1965). Joanna J. K. Rowling is 51 years old (birthdate: July 31, 1965).
On the 11th October 2012, J.K. Rowling took part in a live global webcast, discussing the Harry Potter books and Pottermore.com, from her home town of Edinburgh, Scotland. Produced and directed by her American publisher, Scholastic, the webcast was broadcast to schools in America, England and Canada.