I found that these sticks are sold to change ph of water and orp in water but seems some of them add calcium sulphite in the water which seems is bad for you. I'm following a blog on the issue and i will coment more when I have more info on the issue.
Just be warned and dont buy those sticks from japan for the moment. Or even help me with that investigation to clear things .
I bought one of these sticks for cheap and now i can say they are just another crap you can buy.
It doesn't really work much , tap water still taste horrible and the orp drops slightly . So keep looking for other ways to drop the orp of water.
