Every 2 weeks with an occasional 3 and one 5 - 6 week break after 14 I believe. I will be doing another 5 - 6 flushes and then taking another 5 week break I think.
I am considering juice fasting but not Master-Cleanse and do think it will benefit.
I drink teas and do almost every day. Most often Pu-Erh, Bancha or Sencha greens, and Roobois. I occasionally will get dandelion root and drink it every day for a month. I just bought some chrysanthemum blossom tea.