Vetus winter guide: how to winterise your boat

1. WHY IS WINTER MAINTENANCE IMPORTANT FOR YOUR BOAT?

During the winter, your boat is exposed to frost, moisture, and corrosion. Inactivity can lead to frozen pipes and tanks, and even engines and systems may suffer wear without proper care. By taking timely action, you can prevent damage, extend your boat’s lifespan, and start the new season without hassle.
• Preventing frost damage: Protect tanks, pipes, and engines from freezing by using antifreeze (non-toxic for water systems) and other winterizing products. Don’t forget smaller systems, such as bilge pumps and seacocks.
• Extending your boat’s lifespan: Regular maintenance prevents corrosion and wear, ensuring longer life for components like your engine, electronics, and water systems. This saves money and enhances reliability.
• A worry-free start to the season: Taking the right steps now minimizes repairs in spring. Clean and protect the hull, maintain batteries, and check all safety equipment.


2. ESSENTIAL WINTER CHECKS

As highlighted in this guide, proper winter care is essential to keep your boat in excellent condition and prevent unexpected issues when the new season arrives. These essential winter checks will guide you through the process.

Engine and Fuel System
• Drain seawater: Flush engines with freshwater to remove salt or debris, then run the engine with antifreeze (refer to the engine manual).
• Check oil levels: Maintain proper oil levels to minimize wear during inactivity. Change the oil and filter if not already done.
• Protect the fuel system: Fill the fuel tank completely to prevent condensation, and add a fuel stabilizer to maintain fuel quality during inactivity.
• Run the engine periodically: If possible, run the engine every few weeks to prevent parts from seizing and to keep systems lubricated.

Water Systems
• Prevent freezing: Empty all tanks, pipes, and pumps, and flush them with non-toxic antifreeze. This includes drinking water, waste tanks, and systems like the toilet and shower.
• Inspect connections: Check hoses and fittings for leaks or weak spots that frost could worsen.

Electronics and Batteries
• Charge and store batteries: Remove batteries, fully charge them, and store them in a dry, frost-free location. Recharge periodically during the winter.
• Protect electronics: Cover navigation equipment and other fixed electronics to prevent damage from moisture or cold. Ensure sockets and switches remain dry.

Hull and Deck
• Protect the hull: Apply a layer of protective wax to guard against moisture and dirt, making spring cleaning easier.
• Secure the cover: Ensure your cover is tightly fastened and free of tears or loose spots.

Interior Ventilation
• Prevent moisture and mould: Allow sufficient ventilation in the cabin and closed spaces. Open cupboards and remove loose cushions or mattresses to reduce moisture buildup.
• Add moisture absorbers: Use moisture absorbers to prevent condensation and mold growth.


3. PREPARING YOUR BOAT FOR THE NEW SEASON

When getting ready for the new season, follow these steps:
• Test the engine and systems: Reconnect the batteries, start the engine, and check the steering and lights.
• Inspect the underwater hull: Check the hull, propeller, and anodes for damage or wear.
• Safety check: Inspect life jackets, fire extinguishers, and navigation lights.
• Refresh the interior: Ventilate, clean, and return all loose equipment.


4. FURTHER POINTS TO CONSIDER

Boat owners sometimes overlook small details that make a big difference:
• O-rings and seals: Check for dryness or cracks to prevent leaks
• Wet ropes and fenders: Rinse with freshwater and ensure they’re completely dry before storage.
• Anchor and chain: Inspect for wear and lubricate moving parts.
• Emergency equipment: Check expiration dates on fire extinguishers and rescue equipment.
• Condensation under covers: Ensure proper ventilation under winter covers to avoid moisture buildup.


CHECKLIST

With this handy checklist, you can easily tick off all key maintenance points.

Engine and Fuel System
☐ Engine flushed with freshwater and filled with antifreeze (per engine manual)
☐ Oil levels checked; oil and filters replaced if necessary
☐ Fuel tank filled to prevent condensation
☐ Fuel stabilizer added to maintain fuel quality
☐ Pipes and connections inspected for cracks or leaks
☐ Engine run periodically to prevent parts from seizing

Water Systems and Pipes
☐ Tanks and pipes emptied to prevent freezing
☐ Systems flushed with non-toxic antifreeze (including drinking water, waste, and toilet systems)
☐ Seacocks and pumps inspected for blockages or wear

Electronics and Batteries
☐ Batteries fully charged, removed, and stored in a frost-free area
☐ Navigation equipment and other electronics covered to prevent damage
☐ Cables and connections inspected for wear or corrosion.

Hull and Deck
☐ Hull and deck thoroughly cleaned to remove salt, dirt, and algae
☐ Protective wax layer applied to repel moisture and dirt
☐ Boat cover regularly checked; snow and ice removed

Ventilation and Interior
☐ Good airflow maintained to prevent mould and moisture
☐ Loose items like cushions and mattresses removed
☐ Moisture absorbers placed in the cabin to reduce condensation
☐ Life jackets, fire extinguishers, and emergency signals checked for expiry and functionality
☐ Navigation and safety lights inspected