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 was born to Peter James Rowling, a Rolls-Royce aircraft engineer, and Anne Rowling (nee NÃ©e), volant a science, technician on 31 july 1965 In, Yate, Gloucestershire, england 10 (miles 16) km northeast Of. bristol