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).
J.K. Rowlingâs net worth is an estimated $1.2 billion. Since 1997, J.K. Rowling has captivated book lovers across the globe with her renowned Harry Potter series. In addition to publishing that series, she has written other novels and stories and has gotten involved with the film adaptations of her books.