The answer to 'what is faucet installation' is the process of properly installing a new faucet in a sink or bathtub. This includes turning off the water supply, removing the old faucet, preparing the mounting surface, installing the new faucet, connecting the water supply lines, and testing the new faucet for proper operation.
Faucet installation typically requires basic plumbing skills and tools, such as wrenches, pliers, and a basin wrench. It's important to carefully follow the manufacturer's instructions to ensure a secure and leak-free installation. For more complex installations or if you're not comfortable with DIY plumbing work, it's best to hire a licensed and experienced plumber to do the job.