Ugh, yes. I did read some posts where this was being debated, but I trusted Shelley. SHELLEY!!!!!!!! Here's what I read - copied from askshelley.com:
Salt Water Flush
The Salt Water Flush is basically an enema that you drink. The advantage over the enema is that unlike an enema, you also flush your small intestine. The disadvantage is you have to drink a lot of salty water, blech! :)
Warm up one quart of good filtered water, NOT distilled, in a safe, non-reactive pan. It should feel comfortably warm, but not hot, to your elbow.
Add two tablespoons of salt. It can be Hains Sea Salt - non-iodized, or a better Sea Salt , or Kosher Salt. Just don't use an iodized salt.
Taste the water. It should be as salty as chicken soup. If it is not salty enough, you will absorb the water rather than pass it, which will make you bloated and ill, and overwhelm the kidneys, so if in doubt, use too much salt rather than too little.
Drink it all down at once best you can.
Crouch down and start rubbing your abdomen in a clockwise direction, helping the water pass through and dislodging any impacted fecal matter.
Release as needed. It should come out as "butt pee."
Note: You should skip at least one meal, preferably a few meals prior to doing a SWF. For instance, do it in the morning after skipping dinner and snacks the night before. It is best done while fasting. It's safe to do the day after a good fiber shake if you used a safe fiber, but not good to do if you are suffering chronic constipation and wish to induce a BM. The water might balloon out your intestines too much around the impacted fecal matter. Do not do a salt water flush if your tongue has thick cracks and grooves on it.