Install the Ballcock Assembly
There are 21 pieces to install three tank-to-bowl nuts. Start off with the bolt then slide on a seal. Repeat this process for the other bolts.
It's time for the outside seals. Use the same process as before; squeeze all the rubber seals onto the bolts (Image 1). Once all the inside and outside seals are in place, slide the brass washers on and lock them into place with thinner nuts. Hand tighten; use an adjustable wrench to secure.
Start with the flexible supply line (Image 2). It has a heavy-duty seal that should be hand tightened, then use slip-joint pliers a quarter turn. Slide the handle through the hole and then tighten the bolt.
Don't forget to take the overfill tube and place it back into the hole (Image 3). The overfill tube is what fills up the bowl during the flushing cycle.