They do 'work' but you have to "work" them.
There is no way at all to predict PPM using time without a starting point.
A very minor difference in the water makes a major difference in time.
A single water spot on the glass dissolving those minerals in can modify the water significantly and it's odd that any two batches of store bought water will be the same or and one batch stay the same after being stored for a few days. [carbon dioxide has an effect]
Get a "good" generator.
Or modify yours with the addition of a potentiometer and ammeter , get a PPM/TDS or uS meter and watch yours like a hawk.
A means of constant stirring will help even the most primative generators functionality.
Ode
At 12:02 AM 4/22/2005 -0700, you wrote:
>>>>
Taking into consideration the feedback I'd received on my first batch, tonight I brewed 8 oz for one hour using thermal stirring. About 25-30 min in I had heavy bearding and had to clean the rods, though the mixture was still crystal clear. After that, I walked away from it for the remainder of the time. I returned at 60 min brew time to a horrid dark mess with double the bearding I'd had before. Now, several hours later I see there is a lot of sediment at the bottom of the jar- I'm assuming this is the bearding "fuzz" that was broken off by the stirring.<<<<
Is this normal? Should I have taken it off the light at some point, rather than heating the whole time? Is this batch safe? If so, will it be effective? What can I do to produce a better batch next time?
Thanks for letting me bask in your wisdom, guys!
-Raine
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