I use distilled water (after tap water ruined former iron) I do not empty it, usually i use up all the water, but, now will start to empty. It is a Sunbeam Steam Master. think I will read the booklet. I know distilled water is better, I have a steamer to clean the shower, stove, what ever you want to clean and my old one was built up with deposits from reg. tap water.. live and learn :oops: