Sometimes when pouring water in to an i9 bottle I see bubbles appearing at the side of the glass. Why is this?
This is a natural occurrence when oxygen is present in the water. Pouring water in to an i9 informed water bottle may increase the oxygen content, thus increasing the presence of bubbles. Like any bubbles, the air rises to the top of the water and goes into the air. Keeping the bottle cap open may clear the bubbles faster.