Using this basin mixer is easy. Just turn the taps to adjust the water temperature and flow. For cold water, turn the appropriate tap counter - clockwise, and for hot water, turn the other tap in the same direction. To increase the water flow, turn the tap further. When not in use, make sure to turn the taps fully off to avoid any leaks. As for maintenance, clean the mixer regularly with a soft cloth and mild soap. Avoid using abrasive cleaners as they can damage the brushed nickel finish. If you notice any issues, like a drip or reduced water flow, check the connections first. If the problem persists, contact our customer service. Keep in mind that this mixer is designed for inset or recessed countertop basins, so don't use it with other types of basins to ensure its proper function and longevity.