Alkaline Water - Health Benefits

[e2matrix]

Thanks for the help Koen and especially the idea on the prill beads.  I was thinking along those lines in regard to sourcing the NaOH as I know some common sources might not be food grade. 
   
   One other question on checking PH.  What do you use to get accuracy out to .01 PH?  I know there are digital PH testers and looked at some a while back but couldn't decide at the time on one.  Any suggestions?

[Koen1]

For the pH measurement I use one of those digital pH meters.

I had a second hand one that measured down to 2 decimals, so that one was perfect for getting it
down to 0,01 units. But that one broke, so now I use one of those digital "pen" meters.
The one I use now does not go all the way to 2 decimals, it is a cheaper one that goes only
to 1 decimal.
Of course that means I can not get the pH to 10,78 exactly, and I have to make do with 10,7.
What I do now is just add lye untill the pH reaches 10,6 and then very carefully add a little bit
more untill my meter flips from 10,6 to 10,7. In truth it is probably something like 10,73 or something.

That means I may not be extracting all of the "ormus" that one might get when one goes up
to 10,78 exactly. But that's ok with me. As long as we stay below the 10,79 it's fine.
(Above that produces "Gildcrest precipitate" which may contain heavy metals)