Health Concerns Mount as More Old Sewer Pipes Are Lined with Plastic
I haven't read 100% of the article, but from skimming over it, I see no mention of p-traps [1]. How exactly are these fumes getting into places when there's essentially an airlock in every drain connection?<p>[1]: <a href="https://en.wikipedia.org/wiki/Trap_(plumbing)" rel="nofollow">https://en.wikipedia.org/wiki/Trap_(plumbing)</a>