One of the most annoying issues you might face in regards to your bathroom plumbing is a toilet that won’t stop running. Not only is it a nuisance to listen to, but it will also cost you significantly in excess water you aren’t using—something that will reflect on your monthly water bill. Running toilets also mean the inability to flush. Be sure to call for repairs as soon as you notice this problem. In the meantime, we’ve shared 5 reasons below that this may be occurring.