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Based on where you are from, different countries have different terms for "storm drain". Based on where you are from, different countries have different terms for "storm drain". Accordingly to Wikipedia, a storm drain is largely a tunnel that carry runoffs (rain) from urban areas. For a layman, it helps to think along the line of sewage system that functions beneath our cities. In america, this is actually typically referred to as "storm drain" or "storm sewer". In great britan, this is commonly known as http://batchelorcameron60.bravesites.com/entries/general/In-the-world-currently-only-Jonite-reinforced-stone-is-the-only-stone-material-tested-and-certified-according-to-the-BS-EN-Standard " or "surface water sewer". In Australia and New Zealand, it is typically referred to as "stormwater drain". And there it is, the next time you hear someone mentioning "storm drain", "storm sewer", "surface water drain","surface water sewer" and "stormwater drain", you now know they refer to exactly the same thing. Functions of storm drain include draining excess water (rain or storm water) and ground water from pavement, streets and carparks into rivers and streams to avoid flooding. Although storm drains do a amazing job of draining excess water from the urban areas, the inlets are essentially openings where left uncovered can pose a danger to pedestrians. Left uncovered, rubbish will go into http://zuclos.com/index.php?do=/blog/821/what-is-outdoor-furniture/ and cause choking which may eventually lead to flooding. To ensure storm drains serve their purposes while minimizing the potential risks posed to pedestrians and to prevent choking of the drains, drain covers (gratings) are used to cover the inlets (openings) of the storm drains to achieve two purposes. Over at Jonite, we specialise in steel reinforced drain covers (gratings) for your storm drains while preserving the aesthetic elements of http://www.doctorant-marketing.com/blog/view/155290/we-all-have-been-to-a-swimming-pool-at-least-more-than-once-in-our-lifetime around the drain covers.