We buy it because our water here in the village is full of calcium. Well water is iron heavy. I always use bought water for the canner or water bathingYou can buy distilled water in gallons in the baby department... also usually where there are irons/ironing boards. Distilled water in an iron keeps from getting stains on clothes if you iron and use the steam setting. And keeps things like iron in the water, or in our case , limestone, from clogging up the iron and ruining it.
Powdered baby formula is suggested to mix with distilled water so that you don't use tap water.... no pathogens, no iron or anything that can bind up nutrients in the powdered formula... I never knew they sold it like that until one day I just happened to walk down that aisle on the way to something further away and saw it.
I think the short staffing is to blame. One section may be completely stocked and the next section is bareIs there a shortage of distilled water that I don't know about? We buy it for DH's cpap and thankfully I've not noticed any shortage.
I went shopping at Walmart a few days ago. Big shortage of frozen foods of any kind. I was seriously wondering what was wrong. After I left there I went to Kroger and headed straight to the frozen food aisle. Totally stocked. I think I just hit Walmart too early in the morning, lol.