Bruce and Cecil - I plead for redemption.
Your chemistry explanation was very accurate; lots of info packed into that short post. It once again reminded me of chemistry class. It may appear I was giving you a hard time but it was a subtle way of saying the ionized, unionized ammonia ammonium, pH, NH3 carbon dioxide, NH4+ hydrogen losses and gains had me a little dizzy. Getting me dizzy is not too hard for someone to do. I was thinking about the average pondowner & fisherman and how they would perceive your description -explanation . However, it is a complex topic to simplify with easy to understand words. Job security for chemists I suppose.
