Well, they ARE junk! So's my car, but I drive it and it usually gets me close to where I want to go.
Junk isn't always useless...just gotta recognize the limitations and decide how much they matter to you.
In the case of CS, considering that there are no standards as regards to doseage [and probably none needed] and ALL of it seems to work to some degree or other, they [meters] do OK. They give you a relative "idea" of what you have compared to what you had before. So do your taste buds and eyeballs.
That's better than nothing and I , myself, do it.
But to use a PPM meter to compare between your CS and someone elses, then use that info to argue about it can be really tricky.

To say, 10PPM by meter, light TE, pale yellow color has no real quantification because that statement is 3 relative *opinions* about what #ion to colloid ratio, pale and light# is, but it can be an, at least useful, discription.

To say 10PPM without saying how it was measured, is not.

Meter readings can easily be 50% off from reality. Meters read lot closer to YOUR reality than anothers [IF you have any idea about what your reality really is because just a few degrees in room temperature yields different results..then there's differences in water, battery strength and so on, in YOUR production and storage environment].
To say 10PPM [by meter reading] allows for some latitude in discussion that includes "It *looks* like this... vs... it *is* this"

My car just looks like junk. [to someone else]

Ken


At 11:18 PM 10/19/01 +1000, you wrote:
>>>>
In Digest #949, Ode Coyote wrote:
"
The ionic concentration will be as variable as the process and can change over night as well. Batches must be run exactly alike for a degree of uniformity and there are a lot of environmental and electrical variables. Ken"

Ken, are we talking the same thing? You seem to be talking about difficulty in predicting the PPM outcome for a run, while I was referring to a simple means of determining PPM after the run, after it has all settled down. If you're saying that can't be effectively done, then all those PWT meters are junk, I guess.

regards, Kevin

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