Tap water if chlorinated is not great for the coatings on modern glasses I've been told. YMMV if you're not in such a place. I mix my own spray bottles from di

Tap water if chlorinated is not great for the coatings on modern glasses I've been told. YMMV if you're not in such a place. I mix my own spray bottles from dish soap, non chlorinated water and a bit of rubbing alcohol actually. Water is softened.