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).
Rowling conceived the idea for the series on a train trip from Manchester to London in 1990. Rowling has led a rags to riches life story, in which she progressed from living on social security to multi-millionaire status within five years. As of March 2011, when its latest world billionaires list was published, Forbes estimated Rowling's net worth to be US$1 billion.