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 Rowling was born in Yate, near Bristol, a few miles south of a town called Dursley (Harry Potter's Muggle-family). Her father Peter Rowling was an engineer for Rolls Royce in Bristol at this time. Her mother, Anne, was half-French and half-Scottish.