Using your POSEIDON round matte white ceramic basin is easy. Just install it above the counter as it's designed for above - counter mounting. You can use it for your daily hand - washing, face - washing, etc. For the pop - up waste, you'll need to buy it separately and install it according to the instructions that come with it. When it comes to maintenance, use a mild cleaner to wipe the basin regularly to keep its matte white finish looking great. Avoid using abrasive materials as they can scratch the ceramic surface. Also, make sure not to pour extremely hot water directly into the basin as it might cause damage.