We got motion activated faucets for the kitchens on one of Home Depot’s daily deals. I find myself trying to use my elbow to turn the valve when my hands are covered in whatever we’re cooking, and not needing to touch anything to rinse my hands would be awesome. Until it was installed, though, I never really thought about the mechanism behind the motion sensing valve. There’s still a manual handle that controls temperature and flow rate. The motion-activated valve does not have a separate control for these functions — you essentially leave your faucet turned on all the time to whatever temperature and flow rate you want. Then the motion-activated valve allows water to flow and stops water flow. Obvious, in retrospect, but not something I realized before owning one.
There is a timer that automatically shuts off water flow – but that timer is around three minutes. This seemed like a terrible idea until we accidentally discovered that activating the motion sensor a second time stops water flow. Now that I know how to turn the water off without waiting three minutes … it’s a cool feature, and one I’ll appreciate more after I make something really messy like fish and chips.