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 and her mother were both students of his. Gave birth to her 1st child at age 27, a daughter Jessica Isabel Rowling-Arantes on July 27, 1993. Child's father is her 1st husband, Jorge Arantes. Gave birth to her 2nd child at age 37, a son David Gordon Rowling-Murray on March 24, 2003.