Design Concept for a Self-Sealing Storm Drain

In areas prone to flooding, storm surges can occasionally reverse drainage systems, sending dirty water spewing up through storm drains. Additionally, stagnant water beneath a storm drain can become a breeding ground for mosquitoes.

The FloaX concept, designed in Taiwan by Yu-Chun Chang & Joseph Kah-Rong Wong, is intended to protect against both problems. The solution consists of a buoyant basin captured in a channel below the drain cover. This basin–the designers, for whom English is presumably a second language, refer to it as a “valve plank”–has a drain hole and contains a buoyant ball larger than the hole.

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With this arrangement, water running into the storm drain will displace the ball but not the floating basin:

In the event of flooding from below, the basin itself will rise, plugging itself against the drain cover:

While the FloaX concept wouldn’t work for cases of extreme flooding–click here for a GIF of that disgusting scene in Parasite, if you haven’t eaten lunch yet–it ought mitigate minor flooding, and provide one less access point for mosquitoes.


Source: core77

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