To stop a kitchen or bathroom tap from leaking at the base where it meets the countertop or sink, you usually need to tighten the mounting nut underneath the sink or replace the internal O-rings. Over time, constant swivel motion loosens the mounting hardware. Callout type="warning" title="Hygiene Warning": Shut off the water supply valves under the sink before beginning repairs. Verification: Turn the faucet handle and swivel the spout back and forth to confirm zero water seepage around the base.
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