If you want to install a sink stopper in your bathroom sink, you must first open the faucet and put the sink stopper in it. Then you need to tighten it by screwing it into the sink. If you have a single-hole sink, you must have one pin; but if you have a double-hole sink, you must have two stoppers. Sink stoppers are very important for the safety of the water stored in your bathroom sink. If you keep using the old pin, it can lead to clogs and other problems.

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