Turn off the hot and cold water supply valves under the sink
Open the faucet to release any remaining water pressure
Place a bucket or towel under the sink to catch drips
Disconnect the supply lines from the old faucet
Remove the mounting nuts or brackets holding the old faucet in place
Lift out the old faucet from the sink
Clean the sink surface around the faucet holes
Install the gasket or putty according to the new faucet instructions
Insert the new faucet through the sink holes
Secure the faucet from underneath with the mounting hardware
Tighten the mounting nuts evenly
Connect the hot and cold supply lines to the new faucet
Reconnect any sprayer or soap dispenser lines if included
Turn the water supply valves back on slowly
Check all connections for leaks
Tighten fittings if needed
Run the faucet for a few minutes to flush out debris
Test hot and cold water flow and confirm proper operation