Hi,
I agree with Nissan. If one is having periodic spikes in conductivity it points to contaminants other than rouge. On the other hand, if there has been a gradual increase in conductivity over time to the point of concern, it is then time to take a good look at the entire system for potential contributors. Not knowing what other analysis is being performed on the water of concern other than conductivity, such comprehensive investigative testing can provide important clues to the source if not already being done. Don't overlook potential carryover from the pre-treatment operation, whether it is ion exchange beds, reverse osmosis or the like. Even such things as running compression distillation units too aggressively with inadequate blowdown may be the culprit.
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