Boat Thru-Hulls & Seacocks 101: Inspection, Failure, Safety & Upgrades

Dirt-cheap Winter Insulation for Liveaboards: https://www.practical-sailor.com/boat-maintenance/dirt-cheap-winter-insulation-for-liveaboards In this video, we dive into one of the most important — and most ignored — parts of boat ownership: thru-hulls and seacocks. These tiny fittings decide whether your boat stays floating or becomes an unplanned submarine, and most sailors never give them a second thought. We cover everything you need to know to keep your boat safe, including: • What thru-hulls and seacocks actually do • The #1 cause of below-waterline failures • Why some materials fail (brass, stainless, composites, bronze) • How to inspect your system • Common installation mistakes • Which hoses and clamps are actually safe • What to replace, when, and why • Simple monthly maintenance you should be doing • Real-world failure scenarios • How to make sure your boat never sinks from a preventable leak Whether you’re a new boat owner or you’ve been sailing for decades, this guide will help you understand the most important valves on your boat — and how to keep the sea on the outside where it belongs. Practical Sailor is your trusted resource for reviews of sailboats and sailing gear. https://www.practical-sailor.com Chat with us on Facebook! https://www.facebook.com/PracticalSailor/