good advise thanks. i am takin coral calcium powder with 2 leters of water a day with hlaf tsp Sea Salt . average ph of the water is 9 and the average ph of the 4oz backin soda water is 9-9.5 so it makes me feel a little beter. i dont drink soda can foods fast foods ect. but what do you mean its not good for digestion? what does it do? i havent noticed anything but mild gas. thanks again