60 or so years ago, but yes, saw with my own eyes.
Pop had the nylons hung over a coal bucket in the coal bin (still heated with gravity coal furnace in those days, $3/ton for lump coal, we hauled from the mine.
The chloride continually dripped water into the bucket, never needed to replace the chloride, just empty the bucket.
After pop finished the basement, got an electric dehumidifier as I slightly recall there was some residual odor from the chloride method. The water is also slightly corrosive and not friendly to cast iron plumbing.
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