How do you Replace washer on 2 handle kitchen faucet?

To replace the washer on a two-handle kitchen faucet, first, turn off the water supply and open the faucet to relieve any pressure. Next, use a screwdriver or wrench to remove the handle screws and lift off the handles. Take out the retaining nut and pull out the stem, where you'll find the washer at the bottom; replace it with a new one of the same size. Reassemble the faucet by reversing the disassembly steps and turn the water supply back on.