If the seal is cracked or brittle the stopper should be replaced.
Sink stopper seal.
Clear the stopper and rocker arm of hair and debris.
If it s still in good condition you can reuse it.
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Reinstall the stopper and rocker arm.
Lift the stopper out of the drain.
Insert the new stopper into the sink drain with the slotted flanged portion facing.
Lift the old stopper out of the sink.
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Make sure the flange is tightly.
Simply remove the plunger clean and if necessary replace.
Inspect the rubber seal on the bottom of the stopper head.
Simply grip the stopper body and pull it out of the drain along with the hinged rocker arm.
Remove the old seal and slip on a new one if needed.
Find replacement parts on amazon.
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