To be equally direct, you question was answered on July 2.
Quote Originally Posted by aylad View Post
...Since your alk is going to come down with the ph when you add acid (read the "using muriatic acid" link in my sig, before doing so), you can raise the Alk using arm & Hammer baking soda, which will raise the alk with very little effect on pH. Then when you have the alk up, you can use the muriatic acid to bring the pH down. The alk will come back down with it, but if it only comes back to 70 or so, then that's fine...Welcome to the forum!!