Replied by Ted (Bangkok, Thailand)
Dear Janet: It is quite common for people have an electrolyte imbalance. Most common imbalances are sodium, potassium, magnesium, phosphates, and bicarbonates, while calcium often is too much.
The second issue is pH. Sometimes litmus paper can help measure this problem, your urine pH should be around 6.5-7.3 It seems like your salivary pH is way over 7.5 since you mention of "bicarbonate" saliva. Often when pH saliva is over 7.5 it means your body have excess phosphates. Sodium is often antagonistic to phosphate and increase in this MIGHT reduce phosphate. The only way to be sure is to see if the saliva pH is reduced. However the easiest way is to stay away from phosphate rich foods. Sometimes supplements put too much phosphates as "fillers".
The third issue is mineral imbalances. Yes, organic minerals will help. Also try adding 1/4 teaspoon of sea salt per liter of water too. It will just help balance it too, since sea salt do contain traces of mineral. Just to give you some idea why sea salt can be important in some ways is go here: http://oceanplasma.org/English/frames.html
Try getting some Oral Rehydration packs, while not complete as it contains sodium, potassium and glucose, it does balance the sodium/potassium issue. They are usually sold in drug stores and most pharmacists should help you.