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Hello~
I am a man in his 40s living in Gwangju Metropolitan City.
After Chuseok, the shower filter started turning brown.
Now it turns brown like this in just 2-3 days.
The water supply office says it is harmless to the human body.
I would like to ask the opinions of experts.
Some photos I took
I am attaching some photos posted on Carrot.
This is a filter that changed in 3 days.
Confirmed not only at my house but also in Gwangsan-gu and Buk-gu, Seo-gu.
They say it works.
If you live in Gwangju Metropolitan City, please check.

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