JJ, those two questions are answered in Jim's newest book, plus many more questions. Using MMS is somewhat complicated and you really need to study the book before starting any MMS protocols. Also, the book introduces the HRP (Health Recovery Plan) which you will want to follow. Do not start by following Protocol 1000!
From the book Jim says:
This book is chock full of essential details that are important to know in order to recover health. If you are not aware of some of these vital details it can prevent your recovery, likewise, other important points can help insure your recovery. I strongly encourage you to read this book in its entirety—from front to back! You do not want to cut corners when learning about MMS.