| I don't have a magnetic stirrer, ours is mixed via a Mag pump. In any case, ours mixes for 15 minutes every 4 hours.
I'm not sure how much it matters, but keep an eye on the pH of the effluent -- if you have a pH monitor, it should be at about 16.0
HTH,
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~ Teri
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"You do not need a parachute to skydive. You only need a parachute to skydive twice."
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