Why my high-arc spout kitchen faucet doesn't immediately shut off?
This is a normal characteristic of any single handle kitchen faucet with a high-arc spout. After the handle (or handles) are shut off, there is still water inside of the spout. Any residual water past the arc of the spout will slowly drip out of the spout. Gravity will pull this water from the spout; however, it should stop after several minutes.
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