MJ Sailingvideo

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

29 November 2025 · 19 min · 29K views

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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