Using the Brizo Invari Single - Handle Lavatory Faucet is easy. Just turn the single handle to adjust the water temperature and flow. When installing, make sure the deck thickness is within 3 inches for the 1 - hole installation. Remember to order the drain separately, and you can pick either a push - button or a grid strainer drain according to your preference. If you want more design flexibility, you can add the optional escutcheon (model RP100324). For maintenance, clean the faucet regularly with a soft cloth and mild soap. Avoid using abrasive cleaners as they can damage the high - quality brass finish. Since it's CEC certified, it's already designed to save water, but still use water wisely to make the most of its water - conservation features.