How do tap water pipes stay clean for years

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I’ve been drinking tap water all my life and I have to wonder: Tap water pipes have a lifespan of 50 years, without any regular cleaning and maintenance. I have to clean my aquarium every week and even after cleaning it I wouldn’t drink from it. I know light and air play it’s role, but still, 50 years? Is the inside of the pipes really staying that clean or is it that the dirt in there doesn’t really bother us?

In: Engineering

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Anonymous 0 Comments

This. Flint cut back on both phosphate for corrosion control and reduced chlorination to save pennies in their budget. That was almost as as big a problem as going to a less trustworthy water supply. A well maintained distribution system solves most of the issues the OP mentioned. Flint is a case study on how bad things get when you cut back on very basic public health policies.

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