Using your Duravit Starck 3 Undermount Sink is easy. Just place your items for washing inside the sink and turn on the water from your faucet. Since there are no faucet holes, you'll need to install a wall - mounted or countertop - mounted faucet. When it comes to maintenance, clean the sink regularly with a mild soap and a soft cloth. Avoid using abrasive cleaners as they can scratch the surface. Also, don't let hard or sharp objects hit the sink hard as it might cause damage. If there's an overflow, make sure it's clear so water can drain properly. With proper care, your sink will last a long time and keep looking great.