@Captain_Coconut I did read the book (online) but in the end just decided to take a dose last thing at night, didn't have time to keep taking at all those various intervals during the day. In my case it worked just fine that way and I now just take a maintenance dose of around 10 drips once a week or so. Biggest problem I've got is getting more Sodium Chlorite when I run out, seems to have been unofficially banned in the UK.