Winterizing Large Boats on the Great Lakes: A Comprehensive Guide for Owners

For boat owners who operate their vessels on the Great Lakes, the winter season marks a time of preparation and maintenance. The unique climate of the Great Lakes, with its freezing temperatures and ice coverage, necessitates specific steps to ensure that boats remain in good condition and are ready for summer use. This guide outlines the common practices followed by boat owners during the winter months.

Hauling Out: Removing the Boat from the Water

The first step in winterizing a large boat on the Great Lakes is hauling out. This involves removing the boat from the water and storing it on land. This practice is crucial for protecting the vessel from the harsh winter conditions. Boat owners typically opt for marinas or boatyards that offer winter storage services, as these facilities often provide additional amenities such as security and insurance coverage.

Winterizing: Preparing for Freezing Temperatures

Winterizing involves preparing the boat's systems to withstand the freezing conditions. Several key steps are taken to ensure the safety and longevity of the vessel:

Draining Water Systems: This includes the engine plumbing and other systems. Removal of water helps prevent it from freezing and causing potential damage to the vessel. Adding Antifreeze: Antifreeze is applied to the engine and plumbing systems to protect against freezing during the winter months. Fuel Stabilization: Fuel stabilizer is added to the gas tank to prevent degradation during storage. This helps maintain the quality of the fuel and ensures that it remains usable in the spring.

Cleaning and Maintenance: Keeping the Boat in Good Condition

Thorough cleaning and necessary maintenance are essential steps in preparing for the winter. Owners often perform the following tasks:

Oil Changes: Regular oil changes help keep the engine in good working condition. Hull Inspection: A comprehensive inspection of the hull is conducted to check for any repairs that may be needed. General Maintenance: This includes checking and repairing any other issues that may arise.

Protective Measures: Covering and Indoor Storage

To protect the boat from the elements, owners will typically cover it with tarps or specialized boat covers. Additionally, if possible, some boats are stored in heated indoor facilities to provide extra protection against snow, ice, and debris. This ensures that the boat is well-protected and ready for the next boating season.

Alternative Storage Methods and Regular Maintenance

For many Lakers (large commercial vessels), the winter season is a time of scheduled maintenance, modifications, and repairs. This period is particularly busy for the engine-room staff, as the cold weather necessitates additional attention to ensure the vessel's readiness for the upcoming season.

Additionally, some boat owners may opt to put their pleasure craft on trailers or store them at a boatyard. It is important to note that leaving a boat in the water during winter can lead to crushing by ice, making it a poor option for protection. Some have attempted to use bubblers, placed on the harbor bottom to prevent ice formation, but these are often unsuccessful due to the power required to keep the ice at bay.

By following these steps and maintaining their boats properly during the winter, owners can ensure that their vessels are in prime condition for the next boating season.