Automatic Faucets

Automatic Faucets

Summary

An automatic control for a kitchen and/or lavatory faucet can significantly reduce water consumption through intermittent operation. Because so many of the functions that faucets are used for also require the use of an operator, using a hand to also operate the water flow can result in wasted water between the time that a hand moves from lever to the next object or task at hand -- a bar of soap, pot to fill with water, or dish for rinsing.

There are many technologies to control the flow of water that do not require a hand for operation. These include self-closing valves, motion sensors, metering, and push-activated (by foot or knee) devices.

    
Photos courtesy of: Electronicfaucets.com

Automatic water supply devices can also eliminate cross-contamination by keeping hands (and germs) away from commonly-used surfaces. Hands-free washing after handling unsanitary foods such as raw meat allows germs and mess to wash down the drain instead of clinging to the faucet handle. In addition, both hands are freed to hold heavy pots or multiple items and perform kitchen tasks more safely.

There are many configurations of automatic valves. Faucets that operate by sensing movement when an infrared beam is interrupted are in wide use commercially. Residential designs are available or an infrared sensor can be retrofitted to an existing faucet. Knee and foot operated levers control faucet flow by a valve in the supply line(s). A mixing loop can control the temperature of the water that is delivered by some of the lever operated models.

PATH Attributes

Reduces heated water waste

Reduces water waste

Ease of Implementation

There are a variety of faucets and flow control devices available, each requiring a different level of installation expertise. Most of the devices require a small amount of power to operate. Some can be plugged into a standard outlet, some run off of batteries, while others must be hard wired.

Initial Cost 

The price of the automatic control device will vary based on the technology and installation configuration. Prices range from $50 to $400, dependent on product.

Operational Cost 

Most of the devices require a small amount of power to operate. However, energy cost may be offset by the reduced water consumption.

U.S.Code Acceptance

The International Residential Code requires faucets and fixture fittings to be in compliance with ASME A112.181.

Installation

See manufacturer’s instructions for installation, as installation will vary by product.

Warranty

Warranties vary my manufacturer and product.

Benefits/Costs

Automatic faucet controls offer the convenience of hands-free usage. This can lead to more efficient water usage and eliminate the water wasted between the steps of a task, such as when dishes are being rinsed and stacked in the dishwasher. Water savings, however, still relies on conscious conservation. When a device is activated, the faucet flow rate is unrestrained by the device.

The cost of automatic faucet control varies with the method of control that is selected.

Disclaimer: The information on the system, product or material presented herein is provided for informational purposes only. The technical descriptions, details, requirements, and limitations expressed do not constitute an endorsement, approval, or acceptance of the subject matter by the U.S. Department of Housing and Urban Development (HUD/FHA), The Partnership for Advancing Technology in Housing (PATH), or any PATH-affiliated Federal agency or private company. There are no warranties, either expressed or implied, regarding the accuracy or completeness of this information. Full reproduction, without modification, is permissible. NAHB Research Center