Of wasting water and of using a faucet, I remembered 'a moment' when we unconsciously left faucets running and adjusted water temperature while wasting it. Salva, a faucet inducing to turn off while adjusting temperature, is designed to change user's hobbyfor saving water. Salva can help us not to waste water running unconsciously. In ordinary days, you can use it like general faucets. However, as it is hard to be adjusted temperature while leaving water faucet running, users must try to turn it off. Also, as a control bar gets a form of exclamation when leaving water faucet running, it makes the user aware of a water shortage due to its indiscreet waste.