Fill valve is what controls the water coming into the toilet to refill it after you flush! Like any part in a toilet, a fill valve can go bad and you may have to replace it. Changing your fill valve isn't necessarily a hard job, but can cost a lot of money to have a plumber come replace it. If you think you have an issue with your fill valve and want to replace it, watch this video first. It might save you money! #diy #diyplumbing #diyprojects #homestuff #homeimprovement #diyhomeimprovements