Ecolab (ECL): Is Its Water-and-Hygiene Moat as Sticky as It Looks?

Ecolab Inc. (NYSE:ECL) sells water treatment, cleaning, and pest-control programs that keep restaurants, hotels, hospitals, and factories running safely. The trick is that it installs its chemistry and dispensing equipment on site, making it difficult for customers to switch to a new vendor. At about $277 a share and $77 billion in value, it trades […]