We've all had the problem of a toilet that just won't stop running. You can fix this problem yourself with a few tools from the local hardware store. The part that is causing the excess running is an old fill tube and stopper valve. You will want to shut the water off to your toilet and then flush the toiled to drain out the water. You will have to unscrew the supply line so that you can replace the fill valve. The process only takes a few minutes and it will save you money from wasted water and the annoyance of a running toilet. Now you can get a good night's sleep!