Barometers Usefulness Varies by Latitude
Many electronic barometer/barographs feature an auto alarm that warns of pending bad weather, and we found them to be accurate enough to heed. But whats most interesting is how an instrument that only tracks pressure and temperature can make such accurate calls. It all boils down to how rapidly atmospheric pressure is changing, and according to Alan Watts in his Weather Handbook (a longtime favorite among cruisers), a change of 3 millibars or more per hour is a reliable indicator that gale-force conditions are likely to be headed your way.
Water Tank Filters
You would think that with all the emphasis cruising sailors put on their boats and equipment, we would pay a little more attention to ensuring a clean and safe supply of water. This is less a concern in developed countries, where dockside water is safely treated or bottled water is affordable and readily available. However, once you begin to expand your horizons, ensuring a clean water supply requires more thought and effort. This is the first report in a three-part series on equipment and practices that no matter where you and your boat are, you can be reasonably sure that your on-board water supply is safe.
Types of Filter Media
Water filtration isn't rocket science, but some filter media is better suited for the marine environment than others. And, as we found in our test, some cartridge designs are better than others. Here are the most common types.
Filters for Water Tank Vents
Ever find a bug doing the backstroke in your water tank? We have. Would you leave a glass of water sitting uncovered for weeks and then come back to it? Of course not, but many builders either lead the hose to a mushroom-type through-hull fitting, or terminate it inside the cabin, with nothing to keep the ubiquitous critters from seeking shelter, fresh water, or a nesting site.
A DIY Water Filter
For those of you unfamiliar with Baja fuel filters, they are multi-layer strainers, purchased or handmade, used to filter diesel fuel of dubious pedigree before loading. Water, whether from a dockside hose or rainwater, presents a similar challenge. Weve been exploring freshwater filtration possibilities for a series of articles to come, and while there are great pre-filtration products out there, none offer the versatility of our own home-grown solution, which we call the Baja water filter.
Check that Antifouling Label
Shortly before this issue went to print, Practical Sailor learned that Irgarol, a pesticide commonly used as a boosting agent in antifouling paints, is in short supply in the United States. Although we have not fully investigated the ramifications of this news for boat owners, it seems likely that the supply of paints containing this pesticide will be exhausted sometime this year.
Heart Replacement
Sixteen years ago, contributing writers Joe and Lee Minick equipped their Mason 43, Southern Cross, with a Heart Interface Freedom 20 charger/inverter and a Link 2000R from Cruising Equipment, both made by companies based in Valley Forge, Penn. When both of these units were ruined during a knockdown (see PS, April 2013 online), they were forced to look for a replacement.
Galvanized Coatings Test
Corrosion attacks anchor chain long before it has reached the end of its useful life, and corrosion begins as soon the galvanized coating fails. Re-galvanizing can breathe new life into old chain, but it is not so simple or affordable as it used to be. As we saw in our most recent report on chain (see Practical Sailor June 2014 online), some of the high-tensile grades require specialized skills to galvanize, and others can't be galvanized at all. Even if galvanizing is an option, removing rusty old chain from the boat and delivering it to the galvanizer can make moving pianos seem like a cinch.
Estimating Galvanized Coating Thickness
There are no industry standards for how thick a galvanized coating should be on an anchor chain or mooring chain, and manufacturers don't publish this information. Fortunately, with a bit of sleuthwork, you can determine just how good the galvanized coating is on your chain by carrying out a couple of tests on some sample links you can obtain from your local chandler.
Top Cruising Guides for the Bahamas
The Bahamas are often viewed as the Holy Grail of East Coast cruising due to their beauty and proximity to the Florida coast. Although they appear tantalizingly close (particularly when viewed on those nautical chart-themed placemats down at the Oyster Shack), make no mistake about it: A cruise to the Bahamas is an open-water passage that demands both attention to detail and proper safety precautions. Planning and executing a successful cruise to the Bahamas can be an extremely rewarding experience, one that provides ample opportunity to test preparedness of both boat and crew, while offering a reasonably do-able taste of bluewater cruising.






















