Notes on my Peace Lily

I finally figured out why my Spathiphyllum wallisii keeps drooping even when the soil is moist—apparently it hates tap water chlorine as much as I thought it did. Switched to filtered water last month and the leaves are actually perky now instead of that sad, wilted look. Has anyone else had this problem, or is my plant just extra picky? I'm still learning, but I'm pretty proud I actually solved something instead of just guessing.