The answer to 'faucet constantly running' is that a leaking faucet is a common plumbing issue that can be caused by worn-out washers, damaged faucet seats and springs, or a problem with the faucet cartridge. This can lead to water constantly dripping or running from the faucet, which wastes water and can increase your utility bills.
Some common symptoms of a leaking faucet include hearing dripping noises, seeing water dripping from the faucet, or noticing water pooling around the base of the fixture. To fix a constantly running faucet, you may need to replace the washers, springs, or cartridge, or in some cases, the entire faucet. While some simple faucet repairs can be done as a DIY project, if the issue is more complex or you're not comfortable working on plumbing, it's best to call a professional plumber to diagnose and repair the problem.