My toilet leaks from the nut that attaches the Fluidmaster to the tank. I first thought the water supply hose was leaking so I replaced it.
The leak comes from above the water supply connection. I replaced the Fluidmaster, nut and washers and it still leaks. I tried Teflon tape on the threads, but still there is a slight leak. I had no problem up until a few weeks ago. I even tried another new Fluidmaster, hose, washers and nuts. I hand tightened the nut and took care not to over tighten. What am I missing?