A steam shower is a great way to relax and detoxify your body, but you may be wondering if you need a drain for it. The answer is yes, you definitely need a drain for your steam shower! If you don't have one, the water will just sit in the bottom of the shower and eventually start to mildew. Plus, it's really not very comfortable to take a steam shower in standing water. So make sure you install a good quality drain before using your new steam shower!