Drink the lemonade as soon as you feel the slightest pang of hunger. If you wait too long, it won't be as satisfying. You can drink up to 12 glasses, but most days you won't need to drink that much.
I've done both the laxative tea and the SWF. I prefer the SWF. The Master-Cleanse suggests doing the laxative tea at night and the SWF (Salt-Water-Flush) in the morning. I usually do the SWF (Salt-Water-Flush) every morning. I don't always drink the laxative tea - I find it causes me to feel cramps. I have always had a successful SWF (Salt-Water-Flush) when I use the right salt.