Pat Manley is a keen sailor and one of Practical Boat Owner magazine’s team of experts, answering readers’ questions. He is author of Fernhurst Book’s Simple Boat Maintenance, Esse...view morePat Manley is a keen sailor and one of Practical Boat Owner magazine’s team of experts, answering readers’ questions. He is author of Fernhurst Book’s Simple Boat Maintenance, Essential Boat Electronics, Diesels Afloat, Electrics Companion and Diesel Companion.view less