Phantom Flush Home › Forums › Public Forums › General Plumbing › Phantom Flush This topic has 1 reply, 2 voices, and was last updated 23 years, 12 months ago by Rick. Viewing 1 reply thread Author Posts 25 Jan 2001 at 9:42 pm #274497 MasterPlumbersKeymaster The toilet with the problem is in the basement (used maybe once daily). Once every 2 or 3 days the toilet will flush (in the middle of the night) on it’s own. The toilet is approximatey 25 years old. Please give me some suggestions. Thank you. 26 Jan 2001 at 7:06 am #289850 RickParticipant You need to replace the flapper valve in the bottom of the toilet tank. Good Luck, Rick Author Posts Viewing 1 reply thread You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In