It began as an innocent midnight routine — my husband would wake up thirsty, shuffle to the bathroom, and drink straight from the tap instead of heading to the kitchen. At first, I found it amusing.

But after months of watching him do it, something about that habit started to bother me.

I couldn’t shake the thought that bathroom water just wasn’t the same as the crisp, filtered kind from our kitchen sink. “Water’s water,” he always shrugged. Still, one night, curiosity — mixed with a bit of unease — got the better of me. I decided to see whether he was right, or if my gut feeling had some truth to it.

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