Is drinking water potable, or potable?

tap water flows into the sink

Here’s a small detail that comes up all the time in our industry – how to pronounce the “o” in the word “potable”. Potable water is, of course, water that’s suitable for drinking. We use the word to distinguish from graywater, which is reusable in certain ways (irrigation, toilet flush) but not for drinking, and black water, […]