How do we extend faucet water supply lines?

To extend faucet water supply lines, first, turn off the water supply to prevent leaks. Then, disconnect the existing supply line from the faucet and the shut-off valve. Use a compatible extension kit or additional piping, ensuring you use the correct fittings to maintain a secure connection. Finally, reconnect everything, check for leaks, and turn the water supply back on to test the installation.