I use filtered water in my iron and regular water in my spray bottle. I use whichever one works at the time for me. I tend to go thru irons a lot though. I read online to clean out your iron with vinegar and water. NOT!!!!! Loved that old iron too. Worked for about 10 minutes after using the vinegar and water and then it quit so won't do that again. The iron I have now is supposed to not drip but I find it does just the same. I have one of those expensive steam irons but don't care for it so its collecting dust on a rack above my ironing board in case the present iron goes on the fritz I'll have something to work with until I get another one.