Dr. Clark said with concern that the most important treatment for someone with a serious illness is for that person to move to a place which has good water. She even implied that the quality of water may have more to do with her patient's recovery than the treatment she offers!
(Also, there must not be a water softener: it has the same effect as laundry bleach for unknown reasons.)
Dr. Clark sadly revealed that she finds that when patients leave her clinic to return to bad water, they often relapse, often after just a month. ALL of the patients she has treated who return home to good water either continue to recover or at least hold their own. All of the patients who have returned to her clinic with a recurrence had gone home to bad water.