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A comment on High schoolers create filter to remove lead in water. Parent comment

Re:High schoolers create filter to remove lead in water by NickNameNick on Friday April 01, 2022 @04:26AM (#30876242)
They've been using that lining technique for sewage and stormwater pipes near where I live.

I'm not sure how it will translate to much narrower pipes with tighter bends.

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