Function

• Faucets have a single primary function: to regulate the flow of water. This is achieved by one of several methods. Some faucets, such as those used for washing machines and exterior faucets designed to be used with a hose, utilize a rubber washer and knob assembly that screws into and out of the faucet. These faucets are the least reliable because the washer is damaged slightly with each use and eventually the faucet will begin to leak. Interior faucets for use in kitchen sinks, vanities, or bathtubs and showers typically use a washerless design. This is far more reliable because there are fewer moving parts to cause wear and tear.
  
  

Types

• The simplest type of faucet is the single-inlet faucet, such as that used outdoors or as a connection for a washing machine. Dual-inlet, single-outlet faucets are the most common, and are used in kitchen sinks and vanities, as well as in bathtubs and showers. The dual-inlet design can be broken down into two more types: dual-knob and single-knob or lever. Dual-knob faucets have a separate knob for hot and cold, whereas the single-knob or lever design moves on two axes, allowing it to regulate pressure when moved in one direction and adjust temperature with a separate motion.
  
  

History

• The earliest faucets were not designed for the house at all, but were used to regulate the flow of water in ancient dams. These early faucets were made of wood weighted with iron or stone, rather than the stainless steel most of today's faucets are manufactured from. The influence of early designs is still recognizable in the inner workings of the simplest faucets currently used. Modern design has greatly increased both the durability and beauty of the faucet.
  
  

Considerations

• Faucet prices vary tremendously based on the quality and type of the faucet. The most inexpensive single-inlet faucets cost only a few dollars, whereas a top-of-the-line bath or kitchen faucet can command hundreds--or even thousands--of dollars. Choose a faucet that goes well with your decor and existing fixtures, but rest assured that with the variety available, there is an attractive faucet for every budget.
  
  

Expert Insight

• Extremely low-grade faucets are a poor value because they are prone to failure and leakage. Many hardware stores offer a low-end line of faucets, often costing less than $20 for kitchen and bathroom sink faucets. Choose faucets carefully, and consult reviews before buying. The time and labor invested in replacing faucets will be wasted if the faucet fails within a short time. Although most faucets can be replaced with simple hand tools, specialized tools are available that can greatly ease the connection of faucets in confined areas.