It seems like you would get pretty nasty germs happily living in our plumbing (especially untreated well water).
I think about the water that can sit for prolonged periods in hot water tanks, stagnant water in dead end sections of the plumbing system (unused outside faucet etc), and the wet oxygen rich environment inside the faucet ends.
Yet you almost never hear about people getting sick from their water🤷🏽♂️
In: 1670
I actually work on this kind of stuff and Legionella bacteria is a huge consideration when designing water systems. You always minimize dead leg lengths and frequently flush out infrequently used fixtures, and if the hot water system allows for it (usually large buildings ), you have a constant hot water circulation going on as well as periodically raising the circulating water’s temperature high enough to try to guarantee killing the bacteria if it’s there
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