
This is a bathroom sink drain and a pop-up waste. Why not upgrade your rubber plug and make it elastic? If a pop-up waste is broken, it can easily be replaced. Press in the center with your fingers. There are two types of sinks: those with an overflow hole, where the water drains through a hole located at the top of the sink, and those without an overflow hole. Please note that although there is an overflow hole, some types of sinks use a special drain pipe that is connected to the drain pipe.