SEILmagasinet · video

What this video covers

Andreas Avelgaard, sailing out of Bestumskillen, built a DIY hull-cleaning tool to scrub the underwater sections of his boat from the dock without entering the water.▶ 0:00 The device uses a wooden plank fitted with a universal joint and a rope (tabbe) that lets him push the scrubber under the hull and pull it up against the bottom, reaching the keel and the hardest-to-access midship sections.▶ 0:30 He reports a typical cleaning session takes about 45 minutes — enough that he calls it a training session.▶ 1:29 For the keel, he uses four-meter-long extendable poles bought from a hardware store, working blind by learning the keel's shape by feel.▶ 1:45 He stresses starting antifouling maintenance early, before growth is visible, because biofouling begins the moment the boat enters the water.▶ 1:46 A simpler summer version involves tying a rope between bow and stern cleats just above the waterline, putting on a wetsuit, and using a clog fitted with a hinged wooden crosspiece to scrub the bottom while floating.▶ 2:39 He uses WC-17 antifouling paint and Finnfilm on the waterline.▶ 3:13 Avelgaard has no plans to patent or sell the tool and encourages others to copy it.▶ 1:15

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