Others I've talked to have occasionally found that the first day or two of drinking the salt water didn't produce any elimination. Usually this is true of those that eat meat or dfairy products regularly. Adjusting the salt (usually increasing it), often does the trick.
People have told me that 30 to 60 minutes after drinking the salt water they usually have an urgent and intense need to eliminate. This generally occurs several times over the next 45 to 90 minutes.
Some people gag on the taste. It's much easier to take if you use the uniodized sea salt that Burroughs says to use. My wife recommends using a straw so that the taste isn't so strong.
If all else fails, Burroughs does say on page 22, "If for some reason the salt water cannot be taken in the morning, then the herb laxative tea must be taken night and morning."
It's important to understand that there are two parts to this cleanse. Part one is the detox: mobilizing the "junk" from the part of the body where it's stored. Part two is elimination: ensuring the "junk" is washed out of the body quickly and regularly so that the toxins are not reabsorbed making you feel sick or miserable. The salt water flush is a powerful part of that elimination process.