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
