I have a toilet that flushes properly, and then several hours later the tank is empty. The toilet is not running. I have a Korky Brand unit inside the toilet that has a up and down valve assembly that fills the tank. I also use a Fluidmaster bleach type bowl cleaner that is attached to the back of the tank and fills with bllue water when flushed. This is how I know the tank is empty when the toilet is flushed it fills with blue water, and hours later the water is clear. What is causing this? I have been on the internet for a while now and all the problems seem to be about running toilets. Mine is not running, it just mysteriously empties.
