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).
Joanne Kathleen Rowling was born on 31 July 1965, in the quaint village of Chipping Sodbury, in Gloucestershire, England. Her father was Peter James Rowling, and her mother, Anne.