Boatworks

All Amped Up

by Nigel Calder, Posted December 13, 2010
Mike Keller of Arlington, Virginia, asks:

"I recently upgraded the two lead-acid batteries on my Catalina to 79Ah Group 24 AGMs, and I’m thinking about wiring them in parallel to double my available power supply at anchor. I’d also add a small PWC battery for use as a starting battery. We don’t have refrigeration, but we do have lots of other gizmos that use power.

My


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Rusty Water

by Don Casey, Posted December 13, 2010
Rick Conner of Panama City, Florida, asks:

"I made the mistake of filling my water tanks without first filtering the water. Normally I put a filter on the end of the hose, but this time I didn’t. Because the town water pipes are fairly old, I’m thinking perhaps some rust might have gotten into my tanks. Is there a way to get rid of the orange-colored water now coming out of


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iPad App Review

by Mark Smith, Posted November 30, 2010
Some of you may recall that Navionics vector charts earned with a B+ in my initial review of navigation apps for the iPhone back in April 2010. But after using this app extensively in the Caribbean this past season, I'm upgrading it to an A. With data refreshing approximately every second, I
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Tracking Trickles

by Don Casey, Posted November 23, 2010
Finding a big leak is relatively easy, but a small one can be a major challenge because a boat’s interior is a bit like a room in a funhouse, where water flow often seems to defy gravity. A trickle in the cabin, for example, may be coming from a leak in the deck half a boat length away. Conventional search techniques include 1) flooding the deck by sections with a hose, and 2) building a dike of
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Corrosion Stopper

by Peter Nielsen, Posted November 23, 2010
If the green grounding cable on your boat’s AC inlet is connected to the DC ground as the American Boat and Yacht Council recommends, you may be asking for trouble.

As soon as you plug into shorepower, you’re connecting the underwater metal on your boat—stainless steel propeller shaft, bronze prop and through-hulls, zinc anodes, aluminum saildrive—to the underwater metal on all the other


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