Since you currently have no chlorine, I would add 2 of the 3 quart jugs of bleach. That should take you to about 6ppm. You can either add it slowly in front of a return jet or slowly pour it into the skimmer. Some people frown on putting it in the skimmer, but I always do it that way and so does Al. No problems. Whatever you prefer. As far as adding baking soda, add 2 lbs. slowly to the skimmer. Wait a few hours to let it circulate and then retest and see what that does for your alk and then decide if you need more.