WaterFilter : Add info how to recover a water filter a bit.

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Dmitry Voronin 2023-12-09 20:30:59 +03:00
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# Water filter info.
## How to recover Ion-exchange filter.
Those filters are common i.e. in air humidifiers.
To regen it a bit, put it into a solution of 1.5 liters of water and 300 grams of salt. Keep it submerged for 30 minutes, then wash with clean water.