Friend stopped by and used upstairs toilet in guest room. A few days after\nI went to guest room and heard noise... toilet was still running. Lifted\ntank and the flapper was up.\n\nI reset and flushed and it was okay... but a week later was doing\nhousecleaning and used guest room crapper and after flushing noticed water\nstill running after ½ hour.\n\nCan't see anything that makes flapper stay up... don't want to pay hundreds\nof dollars for a plumber. Wonder if maybe a jerryrig using a bulldog clip\nor two as a weight would help it fall consistently ??\n\nThanks.