Sailing SV Delos · βίντεο

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The crew building the aluminum catamaran SV Delos completes the fabrication, painting, and pressure testing of the vessel's potable water tanks. Preparation involves sanding all interior aluminum surfaces to remove oxidation, followed by an acid wash and the application of Tank Guard 412, a two-part epoxy coating suitable for potable water.12:18 To ensure an airtight seal, the crew installs white food-grade nitrile rubber gaskets on the tank hatches, using aluminum 6060 bolts to prevent dissimilar metal corrosion.9:53 Vetus-supplied inspection ports and adapters are fitted to the lids to manage fill, feed, and vent lines.8:08 The final pressure test uses a rigged air fitting and a gauge, with soapy water applied to identify leaks around the hatch seals.21:29 Minor adjustments to bolt torque successfully seal the system.23:02 The project demonstrates that careful surface preparation and the use of compatible materials are essential for maintaining long-term integrity in custom-built aluminum water tanks.

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