07-28-2013 11:09 AM
The most common reason that a toilet continues to run is due to the flapper getting a calcium build up on it, allowing water to trickle out which will tell the tank that it is not full, therefore continuing to run. The flapper is the rubber piece at the bottom of the tank that has the chain from the flush handle attached to it. Check to see if this is the problem by checking for any build up or obstructions, preventing it from sealing.
Simply shut off the water from the supply line behind the toilet and flush the toilet. Your tank will be empty and you can inspect it. If that is the problem, leave the water turned off, take the flapper out and swing by your Local Home Depot with it and let the PRO in plumbing get you a new one that will fit properly.
"The further a society drifts from the truth, the more it will hate those that speak it," -George Orwell