Tips for Winterising Your Boat’s Plumbing and Electrical Systems

Inspecting Your Boat’s Plumbing Before Winter Starts

Before temperatures start to drop, it’s important to go over your boat’s plumbing systems. Look for any signs of leaks, cracks, or wear in hoses and fittings. Check all outlets and connections, especially in freshwater systems. If anything seems loose or brittle, replace it. Early inspections help prevent costly damage caused by frozen or blocked pipes later.

Draining Freshwater Systems to Prevent Freezing

Water expands when it freezes, and that pressure can break hoses, fittings, or tanks. To avoid this, drain all freshwater from your boat. Open all taps and valves, including sinks, showers, and deck washdowns. Use a pump to help remove any remaining water. Don’t forget to check hidden spots like water heaters and holding tanks.

Protecting Your Hot Water System and Tanks

Hot water tanks need extra care during winter. Drain them completely and isolate them from the rest of the plumbing system. If your system has a bypass valve, use it. Otherwise, it may be best to add non-toxic antifreeze once the system is dry. Tanks should also be cleaned before storage to prevent bacteria or mould.

Adding Non-Toxic Antifreeze to Water Lines

After draining all water, flush the system with non-toxic antifreeze made for marine use. This protects any residual moisture in the lines. Pour antifreeze into each sink, shower, and toilet. Make sure it runs through the pipes until it comes out of every outlet. Don’t forget to include the raw water lines if your boat draws water in for cooling or cleaning.

Checking and Cleaning the Bilge Pump

The bilge area often holds residual water and grime. Clean it out properly and ensure the pump is working well. Remove debris from filters or screens and check the float switch. If you plan to leave the pump running over winter, make sure it’s not obstructed. A clean and functional bilge pump helps keep water from pooling and freezing below deck.

Disconnecting and Storing Batteries Safely

Batteries lose charge faster in cold weather, so it’s safer to disconnect them. Remove each battery and store it in a dry place with a stable temperature. Clean the terminals and give them a full charge. Some boat owners choose to keep them on a maintenance charger. Either way, check the charge levels every month.

Preventing Moisture Buildup in Electrical Compartments

Moisture and condensation can lead to corrosion in electrical systems. Wipe down all compartments, panels, and housings. Use moisture absorbers or desiccant packs in small enclosed areas. If your boat is stored with shore power, consider using a low-wattage dehumidifier. This helps protect wires, fuses, and control panels.

Inspecting Cables, Connectors and Corrosion Risks

Go over every visible cable and connector for signs of damage or corrosion. Salt and moisture can eat away at the wires, leaving them exposed or brittle. Use a corrosion inhibitor spray where needed. Make sure all terminals are dry and tight. Replace any cracked or damaged connectors right away.

Covering External Fixtures and Vents

Cold air and moisture can get in through vents, exhausts, and open fixtures. Cover all these areas securely using marine-grade materials. Use vent covers that allow airflow without letting in debris or rain. If you’re using shrink wrap or tarpaulin for boat storage, ensure there’s ventilation to reduce mould and mildew risk.

Scheduling Routine Maintenance Before Storage

It’s always smart to give your boat a once-over before winter storage. Check the engine, fuel system, electrical systems, and plumbing. Fixing small problems now can prevent major repairs later. Keep a checklist and update your maintenance log. If you’re unsure about anything, it’s best to call in professionals for a full service.

Winter Prep Made Easy at Yaringa BoatWorks

At Yaringa Boat Harbour, we make winter care simple and stress-free. Our boatworks service brings together experienced marine specialists under one roof. We can inspect, maintain and winterise your boat’s plumbing and electrical systems to keep everything in working order.

Whether it’s a quick check-up or full service, we’ve got you covered.

Store Your Boat Safely with Our Onsite Facilities

We offer secure, sheltered storage options right here at Yaringa. You won’t need to tow your boat elsewhere or rely on third-party facilities. Our onsite team handles the preparation and storage process, so you can trust that your vessel is safe during the colder months. It’s convenient and fully managed by us.

Access Full-Service Support in One Location

Our customers value the convenience of having everything in one spot. From plumbing and electrical checks to antifreeze application and battery storage, we do it all. Yaringa BoatWorks is equipped with the right tools, parts and know-how. Save time and protect your boat with our all-in-one winter service options.

Enquire Now About Custom Winter Servicing Packages

Not every boat needs the same treatment. That’s why we offer tailored winterisation packages to suit your vessel’s specific needs. We can look after your freshwater systems, hot water tanks, wiring, batteries, and more. Give us a call or drop by to discuss your options. Our team is ready to help you prepare for winter the right way.