Boat Maintenance

Plastic holding tanks and water tanks have the advantage of not corroding, but they are hardly failure proof. Plastic holding tanks can crack and fail under extreme vacuum pressure if the vent is clogged. An errant drill or saw used to make adjacent repairs can puncture a tank. Or a poorly secured tank can be hurled across a cabin and crack.

Fixed tanks are generally safe from the sun, buried in the bowels of the ship. But jerry cans are often kept on deck, scorched by UV from the sun. They take a beating, hauled back and forth in the dinghy. Seams split and bottoms wear. Sunbrella covers can last for a decade at least, keeping the cans strong.

Regarding your recent report on Seacocks (Beneteau Responds to Seacock Query, PS August 2018) I owned a 1987 Catalina 30, Mark II. It had four gate valves instead of seacocks.

They were off the coast of Bequia in the Grenadines, near the end of a breezy passage on a 34-foot cruising sloop. Just as the boat reached past a rocky point, trouble struck. The steering wheel suddenly turned freely in the skippers hand.

When the clear vinyl on one of our multihull test boats began to crack and fade after approximately 10 years, the costs estimates for window replacement began at around $1,500. Thus began our investigation into ways to prolong the life of clear plastics. In previous issues weve reported findings at the six-month and two-year marks. Here, we present a last look at products and best practices to preserve clear plastics, and the five-year performance of four popular types of clear plastic in the marine environment.

If youre going to sail youll be doing some stitching. No two ways about it. Dont jump into the $100 do-everything kit. Start with a modest kit, adding tools and materials only as your skills grow and projects require them.

With $655 million dollars marine vessel insurance claims from the 2017 hurricanes Harvey and Irma, there is no shortage of broken boats accumulating in salvage yards. The nations three big damaged boat liquidators - Certified Sales, Cooper Capital and U.S. Auctions are gradually thinning out their listings from Irma and Harvey, but Florence will surely bring a new crop. But just how salvageable are these boats?

The irregular shape of welds makes them difficult to inspect using ultrasound technology. Visual inspections can also be deceiving-especially with new welds. The prettiest bead can have internal voids and poor fusion. After a while, that pretty bead will begin to bloom with corrosion and cracks.

While many potential failures are easy to spot, some flaws are hidden under paint or within the structure, or are so small that a routine visual inspection wont pick them up. Standing rigging, hulls, decks and hardware fittings are the most common places where hidden structural weaknesses can lead to big repair bills, or even loss of life.

The very first project tackled on my new-to-me catamaran a decade ago was to wrap the helm wheel with line. Our delivery trip home took place in late December on the Chesapeake Bay, and I didnt want to spend the next three days with an icy stainless steel wheel sucking all of the heat from my fingers. Instead, I spent a productive hour before dinner wrapping the wheel with line.