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. Rowling is the author of: Harry Potter and the Philosoper's Stone, Chamber of Secerts, Prisoner of Azkaban, Goblet of Fire, Order of the Phoenix, Half-Blood Prince â¦ , Deathly Hallows, Fantastic Beasts and Where to find Them, The tales of Beedle the Bard and Quidditch Though the Ages.