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Reusing heating copper pipes for potable water supply

HomeownerDustin
HomeownerDustin Member Posts: 26
edited September 20 in THE MAIN WALL

I just removed one of my hydronic systems with about 50' of copper pipes that are about 40 years old but appear to be in good shape on the outside and from what I've assessed during cuttings.

Can I reuse old copper pipes that were used for heating in my potable water lines? If so, how do I clean out the sludge? Would this risk introducing lead into my drinking water from possible residual leaded solder?

I'm in the process of correctly upsizing my hot water and cold water trunks from 1/2" to 3/4". I was going to convert lots to Pex A, but thought I might able to just reuse the copper. If not, then I'm going to cut off the fittings and sell all for scrap as appropriate.

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