I am sorry I have missed the recent posts. The computer and email systems haven't been operating optimally. I will answer what questions I can.
I believe most tap water is neutral, or at least above pH of 5. You shouldn't need to buy any special water.
I believe the induction diet is pretty much limited to what is on the list. It is only for two weeks, so try to stay with that. Sammy, if your questions are pertaining to the diet after induction, please let me know, and I will try to help you figure it out.
I got my pH meter through Amazon, but I'm not sure you really need one. PH is a liquid-based test, so you really can't test dry food, which is a lot of food. You can get a pretty good idea of the pH by looking at the foods list. Breads have an alkaline effect I believe, acting like soda crackers if your stomach is feeling acidic. 1% milk is allowed on the induction diet. I try to stay with skim milk because less fat is usually better, as I mentioned on the first post of this thread.
Angi, yogurt is slightly acidic, but I eat it daily with my oatmeal made with skim milk. I think a lot of people eat it because it does aid digestion.
Drinking a lot of water with meals is a GOOD idea. It does dilute the acid, which is what you want. There are some people out there with too little acid, so you will find a lot of conflicting information in this area, particularly from the homeopathic school of thought.
I'm not sure what flovorings are in Mrs. Dash, but I think it is pretty mild, would probably be OK on the induction diet but I'm not sure. It is best to stick with things on the list.
I find that butternut squash makes a great non-acidic pasta sauce. You can make mac and cheese using squash instead of the higher-fat flour and butter type sauce. Cheese still has fat, but sharper cheeses have less, so this dish is fine on the after-induction diet. It is delicious!
I will check back more often to see if there are still unanswered questions.