How do you fix a Delta faucet with two handles?

How do I fix a leaky kitchen faucet handle?

Why is my faucet leaking under the handle?

Answer: The most common reason for a faucet to leak under the handle or knob is because of a worn rubber o-ring or seat washer.

Why is my faucet dripping?

Worn out Washer:
This is one of the most common causes behind a dripping faucet. During each use, the washer is forced against the valve seat, and this constant friction causes it to wear out. Dripping caused by worn-out rubber washers can be mended by replacing the washer.

How do I stop a dripping tap?