baking powder bubble mix

"today, at noon, in direct sun and dirty New York air, and 20% humidity, I was getting
twenty foot tubes and six foot spheres, with the following recipe:

12 cups water
1 cup canola oil
1 cup UltraJoy
1/8 cup baking powder

Then, if you add 1/4 cup Cricket Hill or Pustefix or Miracle Bubbles, it's even better."

(from David Stein - a bubble acquaintance - he was experimenting with a 7 pH & the baking powder brought the pH level both up and down to a 7)