He is taking 6tbsp/day but has cut back because it is working too well and he is having die-off symptoms, so now probably 3-4tbsp/day. He was in line for a liver transplant at one point , not sure about it now. You can buy cs at almost any health food store, even Walmart sold it for awhile. I would consider buying a cs generator for as litlle as $20 for a cheapy and $120-$200 for an automatic state of the art one. I recommend taking the low ppm 5-20 if you want to buy cs.
Here are some generators if you want to make your own for a penny/ounce instead of $5-8/ounce at the health foood store or online. You only need distilled water to make good cs.