Water pH is basically a measure of how acidic or basic (also called alkaline) something is. The scale runs from 0 to 14. Seven is the magic number: neutral.
Think of it like a mood ring for water. Below 7? The water is feeling a little sour—acidic. Above 7? It’s feeling more like baking soda—basic or alkaline. Pure water, just H2O, is a perfect 7. But let’s be real, most water you drink isn’t perfectly pure.