A seacock is a valve on the hull of a boat or a ship, permitting water to flow into the boat, such as for cooling an engine or for a salt water faucet; or out of the boat, such as for a sink drain or a toilet.

Sea-cock
Sea-cock
Sea-cock
Seacocks
Seacock Reminder
Seacock interlocking
Seacock interlocking
Installing a Seacock
Where are your seacocks?
DONa€?T NEGLECT YOUR SEACOCKS
Small Craft - Seacocks And Through-hull Fittings - Part 1: Metallic
Extinction of the Force 10 Seacock is a Sign of the Times
The Preliminary Design and Acoustic Characteristics Analysis of the Low Noise Seacock for DN125