Using your Brizo Invari single - handle lavatory faucet is easy. Just turn the handle to control the water flow and temperature. When installing, make sure the deck thickness is within 3 inches and choose the 1 - hole installation for a neat look. You'll need to order the drain separately according to your preference, either a push button or grid strainer drain. For maintenance, clean the faucet regularly with a soft cloth and mild cleaner. Avoid using abrasive materials that could scratch the brass surface. The ceramic cartridge is durable, but if you notice any issues with water flow or temperature control, it's best to call a professional. Also, if you've chosen the optional escutcheon, install it carefully for a more finished appearance.