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MJ Sailing · video

She Drills Holes, He Fills Them (MJ Sailing - Episode 369)

November 29, 2025 · 19 min · 30K views

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What this video covers

Matt and Jessica install two Force Bar Pro seacocks and run electrical conduit through the structural bulkheads of their catamaran. To ensure independent water intake for a hybrid motor and an air conditioning system, they drill two separate through-hull openings in the engine bed area.▶ 0:24 They create recessed mounting pockets by wrapping the seacocks in tape to add thickness, glassing over them to create a mold, and fairing the resulting cavities.▶ 4:55 In the forward lazarette, the crew installs a 3-inch diameter, fire-resistant fiberglass tube to serve as a conduit for electrical and communication wiring.▶ 13:08 They select fiberglass over traditional conduit for its rigidity and smooth interior, which facilitates pulling long wire runs.▶ 13:16 Matt grinds the surrounding bulkhead paint to bare fiberglass and bonds the tube into place using Total Boat thickened resin and 12-ounce double-bias fiberglass cloth.▶ 15:37 This installation maintains the structural integrity of the mast-supporting bulkheads while providing a protected, organized pathway for 110-volt, 48-volt, 12-volt, and NEMA 2000 cables.▶ 18:59

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The Details That Keep a Boat Dry (MJ Sailing - Episode 379)Jun 2026Preparing Our Catamaran for Paint—and Me for Captain's SchoolJun 2026The Bad News: We Have To Cut This Bulkhead Out (MJ Sailing - Episode 377)May 2026We Almost Cooked Our Electrical System… So We Fixed It (MJ Sailing - Episode 375)Apr 2026

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An index of sailing channels on YouTube — searchable by topic, navigable by interest. New channels and boats, indexed weekly. No noise.

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Not navigation advice · © 2026