The answer to 'how does faucet installation work' is that faucet installation typically involves several key steps. First, you'll need to turn off the water supply to the faucet by shutting off the valves under the sink or behind the faucet. Then, you'll remove the old faucet by disconnecting the supply lines and unscrewing the mounting hardware. Next, you'll clean the sink surface and install the new faucet according to the manufacturer's instructions, which usually involves securing the faucet base to the sink and connecting the supply lines. Finally, you'll turn the water back on and check for any leaks.
The specific steps can vary depending on the type of faucet and sink, but the overall process is fairly straightforward for most standard kitchen or bathroom faucet installations. However, if you're not comfortable with plumbing work or don't have the necessary tools, it's generally best to hire a professional plumber to handle the installation to ensure it's done properly and safely.