(I understand that it’s used to drain water, but how does the physics of this work? I’ve grown up thinking if there’s a boat with a hole it’ll sink)
In: 10
Scuppers on kayaks work in exactly the same way as they do on ships. The top surface of the kayak, just like the weather deck on a ship, is above the water level. Still, water accumulates there due to splashes, waves, rain and for other reasons. But the deck is still above the water line so you can put scupper holes at the lowest level of the deck and the water will simply drain out. Ships’ weather decks slope slightly outward so the scuppers can simply be holes in the hull just at the level of that deck. Water can actually occasionally come back up through the scuppers onto the deck but it will just flow out again. Sometimes some kind of one-way-flow system or valve is used to limit the reverse flow.
The key is that both ships and kayaks have
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