Is it okay to use distilled water that has been sitting on the shelf for a long time?12. Are there any specific brands of distilled water at Walmart that are better for certain uses?Where Is Distilled Water in Walmart? You’re on a mission, a quest for the purest form of H2O, and Walmart is your chosen battleground. So,where exactly is distilled water lurking within the vast expanse of a Walmart store?The most common location is in thebeverage aisle, specifically near the bottled water section. You might also find it in thebaby section, particularly near formula and baby food, and occasionally, in theautomotive section next to the car batteries.