What I do for the swf is I put the two teaspoons of salt in the first two cups - I drink from the measuring cup - and then pour the second two cups and drink right after so as to get the salt over with in the first gulping session. If you do a search on the swf in this forum you will find other ways people cope with it.
I have not done a dedicated kidney cleanse ever - involving herbs and stone dissolving. I know the Master-Cleanse is a kidney cleanse but I also wanted to do a cleanse that would dissolve stones if I had them and why wouldn't I. I figured coming off the Master-Cleanse would be a good time to do one. And I am in need of some bladder love too.
Ruby