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I finally learned the hard way why you never skip the pre-dredge sonar sweep
Spent two hours fishing out a submerged steel cable that wrapped around my cutter head because I was in a hurry and figured a quick visual scan was good enough. Has anyone else had their whole day wrecked by some hidden junk you thought wasn't there?
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sandra_anderson22mo ago
Dredging without a sweep is asking for trouble, but I gotta say a visual scan ain't gonna cut it when there's silt or murky water... I had a buddy who lost a whole afternoon to an old anchor chain that was completely invisible from the surface. The sonar is the only way to catch that stuff before you're hung up.
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jamesf262mo ago
Read somewhere that side-scan catches stuff even when you can't see it.
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