I think the salt Water Fast you are talking about is actually a salt water flush.(SWF) That is how I' reading it. Am I right guys?
The directions for the SWF (Salt-Water-Flush) is 1 quart of water, 2 level teaspoons uniodized Sea Salt . Drink the entire quart of salt water in the morning, on an empty stomach. But stay close to the bathroom for an hour or so.