toilet is fairly simple. this can be helpful to you if your toilet is leaking, running, or flushing improperly. if you understand what's going on in there, it can be easier to understand the cause of your plumbing problems.
supply line & shut-off valve - the thin pipe connecting your toilet to a water source is your supply line. at the wall, there is a shut-off valve that will shut off water to the toilet.
flush handle - located just outside your toilet tank. this triggers the parts inside your toilet to work.
flush valve - the part inside your toilet that releases the water when activated by the flush handle.
trip lever - 