Replied by Ted (Bangkok, Thailand)
Dear Mark: The exact amounts averages around 2 liter per 12 hours. So in a given 24 hour period, this comes out to about 4 liter per day. Since we sleep 8 hours, the minimum dose is closer to 3 liter per day. You can drink more than 2 liter per day and how much depends on how much water you would like to drink. You should not force how much you should drink, just drink enough.
If the drink is salty, as a warning, if you add 1/4 teaspoon of sea salt and it taste salty, or even adding just 1/8 STILL taste salty, this means that your drinking water is contaminated, even if YOU DO HAVE A WATER filter. I found the major source of heavy metal contamination is water filter where the connections are old and they release copper, and other heavy metals.
Personally I have a really bad sore throat and cough boarding on bronchitis.
A sea salt water you can sip every 10 minutes and it does help. This won't stop the sore throat. A sore throat can best be stopped with 2 teaspoon of baking soda in 1/2 glass of water and this is sipped every 10 minutes instead.
The sea salt will ALLOW you to recover from your condition FASTER, but the sore throat pain is best done doing the baking soda sipping and mouthwash regimen.