The layman term for drain cover (grate) is manhole cover. Say "manhole cover" and pictures of spies/heros making use of the underground sewage system popping out of manhole cover in Hollywood films appear. Historically ever since Man invented the sewage system since the Roman Times to drain water and urban waste away for sanitation purposes, manhole covers (drain covers or grates as we prefer to call them) have already been invented out from the necessity in order to avoid A strainer (commonly known as floor drain cover or floor grating/grate) should always be used all the time to cover the floor drain. from falling into underground sewage and also to prevent large objects from entering the drains which cause choking which eventually may lead to flooding. Fast forward to the present day, the sewage system is still being used under all cities around the world. Instead of the crude stone manhole covers the Romans used in the ancient days, now we have special steel reinforced stone gratings that provide What exactly is grate |grating |grateing|gratting? of covering the inlets of our sewage system. More than simply a cover, check out Jonite's range of drain covers (drain gratings) here: http://www.jonite.us/products/creative- Subject to where you are from, different countries have different terms for "storm drain". To read more, go to website: http://wiki.piraatit.fi/index.php?title=A-strainer-popularly-known-as-floor-drain-cover-or-floor-gratinggrate-should-always-be-used-all-the-time-to-protect-the-floor-drain-e http://embreveaqui.indisciplinar.com/index.php?title=-Precisely-what-is-grate-grating-grateinggratting-x http://terimwiki.com/index.php?title=Depending-on-where-you-are-from-different-countries-have-different-terms-for-storm-drain-k