Drop in sinks. Every commercial foodservice business requires commercial sinks and faucets. Each sink must be paired with a commercial faucet designed to optimize the usability of the sink station. Drop in sinks generally drop in to table top and include a faucet. These drop in sinks have one to four compartments, with three-compartment sinks being the most common for washing, and sanitizing dishes. Restaurant drop in sinks are a great way to make ore of your space, by adding a sink to your table top. Be sure to know what type of is best for you.