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Hidden dangers in PEX? Cross-linked polyethylene tubing is gaining ground in residential plumbing systems, but a poster wonders whether chemicals leach out of the material into drinking water. Image Credit: Fine Homebuilding magazine. Builders have climbed on the PEX bandwagon in droves.
Discover why PEX tubing is a popular choice for water-supply systems and learn how to protect it from its one kryptonite: rodents.
People are concerned about PEX's potential long-term health and environmental concerns, as well as its compatibility with certain water conditions. Here are a few reasons why some plumbers and homeowners may feel like PEX pipes for your home are not a good choice: PEX plumbing is susceptible to rodents.
Most research suggests that PEX isn’t ideal for drinking water. Filtering water from PEX lines makes it safe for consumption. Most homeowners stick to other pipe options for water supply lines, like copper.
Myth: PEX Pipes Are Vulnerable to UV Degradation and Environmental Damage. UV resistance of PEX materials: UV stabilization additives and protective measures. Underground and outdoor applications: considerations for UV exposure and environmental conditions. Long-term performance in varying climates and environments.
Water exposed to PEX tubing and associated fitting systems is tested for the following contaminants as required by NSF/ANSI 61: VOCs (volatile organic compounds)
Cross-linked polyethylene (PEX) tubing is an increasingly popular choice – cheaper than copper, faster to install and virtually free of fittings that can leak. But who cares if it’s also adding unwanted chemical compounds to the water?
There are a few issues that users need to be aware of: PEX plumbing tubing is impermeable. This means that oxygen cannot penetrate the tubing, greatly reducing the potential for chemical reactions including corrosion. However, the right type of tubing should be used for radiant heating applications. PEX-AL-PEX is recommended.
This report summarizes research on how plastic pipes shed MP and NP and reviews the effects that these particles can have on the gut, lungs, brain, and reproductive systems, along with risk factors for the spread of pathogens and disease.
One of the primary concerns with PEX plumbing revolves around the leaching of chemicals into drinking water. Studies have shown that PEX pipes can release volatile organic compounds (VOCs), including substances like toluene and MTBE, which could pose health risks.