In this article, we’ll be taking a practical look at the maintenance of your catamaran, specifically inspections beneath the waterline when your boat is ashore.
When a boat is taken out of the water, take the opportunity to perform a series of checks on the propulsion systems and hull equipment located in the normally-submerged part of the boat.
Rudder, P-bracket and propeller:
- Rudder: check that there is no play in the rudder stock and check overall condition.
- P-bracket and stern tube: check the fixing, cleanliness and overall condition.
Stern gear: general
Stern tube: closer detail
Propeller anode: check it is tightly secured.
Anodes and ground plates:
Anodes and ground plates: if there is more than 50% wear, the anode must be changed. A Lagoon dealer will be able to supply you with the right product for your needs.
Check the condition of the boat’s skin fittings (through-hull fittings, ventilation fittings, etc.). These must not be blocked by algae, sand, mud or any other object that prevents air/water from getting out or in.
It is important to remove any algae or other external elements that may block the fitting.
The condition of the log impeller blades should be checked: ensure there is no algae in the mechanism.
Optional: check the calibration of the sounder and the under-keel clearance offset.
Undertake a hull condition assessment to check the state of the antifouling and thus know if it is still good or if it needs to be redone (with or without a new coat of primer).
It is essential to scrape or pressure wash any non-structural element of the boat below the waterline.
Tap the hull one square meter at a time looking for any breakage, holes, cracks or delamination.
If possible, get a hull survey done.
If you have any questions, do not hesitate to contact your Lagoon dealer or complete this contact form.