It monitors conductivity like a PPM meter.
 A PPM meter cannot detect particles.
If some environmental element is prematurely kicking off reactions to produce non-conductive particles, all of that contaminant has to be used up before conductivity will go up enough to shut the machine down.
There are many things that can fool a PPM meter, which doesn't measure PPM.

The contaminant can be non-conductive or gradually leach into the water from the glass or the air and thus not show up as initial conductivity. Cold water can contain high amounts of dissolved gasses and also has a lower saturation point than warm water which will force ions into becoming particles at a lower concentration.
Once formed, particles don't tend to re-dissolve...depends.

Ode




At 01:04 PM 12/16/2013 -0500, you wrote:
I had the Silver Puppy set to Automatic & SWAP. I thought the Silver Puppy was automated and would shut off at the correct time?



Hi JD:

It means that you have way too many larger silver particles in the CS, either due to electrode eroding or perhaps a dirty/plated production vessel, or even poor quality distilled water. I always quality check my batches with a bit of H2O2, even if the batch is completely clear (mine are); if it clouds, I either continue adding h2o2 until it clears (and then use it for external/cleaning purposes), or I simply discard it.
~Jason


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