Are new PEX brands publishing PFAS/chemical migration data; does copper still win for drinking lines?
Some new PEX brands share info on chemical stuff moving around, even PFAS, but it’s not much. If you stress about chemicals leaking, mainly where water is checked closely, copper pipes are still your best bet for safe tap water.
New PEX brands are starting to prioritize transparency regarding PFAS and chemical migration data. However, it’s crucial to note that not all PEX pipes are created equal, and some manufacturers use PFAS-free organic peroxides in their production process.
When it comes to drinking water lines, copper is still a popular choice due to its durability and resistance to corrosion. However, concerns about PFAS in PEX pipes don’t necessarily mean copper is the only alternative.
No
New PEX brands rarely publish PFAS data. Copper is still generally safest for drinking water.
Most new PEX brands don’t share PFAS or chemical leaching data, and PEX can release small amounts of VOCs at first.
Copper avoids those plastics-related concerns and lasts longer in good water chemistry, but costs more and can corrode in acidic or soft water.
Many pros use copper for drinking lines, PEX for the rest, or add a drinking-water filter.