The Plumbers and the Prophets
When you look at the companies involved, I see two main camps. First, you have the "plumbers". These are the regulated water utilities, the ones that operate as local monopolies. Think of a company like American Water Works. They own the pipes, they send the bills, and because everyone needs their product, they enjoy remarkably stable cash flows. Investing in them is a bit like owning a toll road for life’s most essential commodity. It’s not going to set the world on fire, but it offers a certain predictability that is increasingly rare.
Then you have the "prophets". These are the technology firms, like Xylem, that are revolutionising the industry. They are the ones selling the smart meters that detect leaks, the advanced filtration systems, and the digital tools that help a creaking old network run a bit more efficiently. While the utilities offer stability, these companies could offer growth as the entire sector is forced to modernise. It’s a classic blend of the defensive and the dynamic, all centred on a single, undeniable need. For those looking to explore this theme, a collection like the Water Wars might group together companies from across this spectrum.