The basic Sea Salt water flush is two teaspoons of good quality Sea Salt to a quart of warm water. Do this once a day on an empty stomach. A little fresh lemon juice may be added, but it is best taken straight. Trapper had a post with a link to a long term salt water cleanse. I'll see if I can find it.

Salt-Water Flush Recipe
2 quarts (2 Liters) Water - boil to tea drinking temperature
1 Level Tablespoon Natural Salt - from sea or ground
Juice from a Lime/Lemon - if required to offset the taste
16oz (1/2 Liter) Serving Cup
Alarm Clock - set to sunrise for 7 days
Toilet Paper

From:http://www.lifeevents.org/salt-water-cleanse.htm

You can skip the alarm clock and lemon juice if you want. I have done this many times and it does the job. Thanks, Trapper, for the tip on this many moons ago.