Water leaks between the tank and the bowl.

1. Remove the tank cover and place a level across the top of the tank. 
   
   
2. Locate the mounting nuts and bolts underneath the tank.
   
   
3. Using a wrench, tighten the nuts on each side one-quarter turn at a time.
   
   
4. Important: Turn only the nuts. Do NOT turn the bolts.
   
   
5. Go back and forth until the tank is secure.
   Important: It is important to tighten the nuts evenly or the china may break.
   
   
6. Does the problem persist?