I’ve been mulling the idea that me yacht should be equipped with a back-up depth sounder; also one for use on the dinghy. I know there are battery-powered digital models available. But there also traditional lead lines with 12 fm of rope and a lead that samples the bottom with beeswax. How much depth capability is needed? Yes. I could make my own lead line, and I have; crudely. Maybe one of each type? How often does a yacht’s depth sounder fail? I suppose having one that could function underway would be the most practical. Anyone with experience on having lost sounder function?
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