WC, or wash closet is commonly term as toilet. We all used it everyday, but how much you know about it?..
yaya, we know about the floating ball inside the cistern (the place where the water is stored), and the water will flow inside when the ball is below certain level. So what's the big deal?..If only it can be so simple and obvious!... well below and inside, every part has its own function, some you can't even imagine that it can works like that..
will post the every details later!..
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