I had the same experience the first time I tried the SWF. It turned out that I didn't use the right kind of salt. You have to used uniodized Sea Salt - you have to check the package because alot of Seasalt is iodized. Someone on this forum suggested Celtic Sea Salt which I tried and the SWF (Salt-Water-Flush) worked like a charm. Also the celtic Sea Salt tastes a little better. I was only able to find it in a health food store.
Also, if it was your first SWF (Salt-Water-Flush) at the beginning of the MC, you may also need to take the lax tea the night before to get everything moving. But once I got it right its been fine, works as described, and is fairly predictable.