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A round manhole and its cover. A manhole cover is a removable plate forming the lid over the opening of a manhole, an opening large enough for a person to pass through that is used as an access point for an underground vault or pipe. It is designed to prevent anyone or anything from falling in, and to keep out unauthorized persons and material.
Screwfix Direct Limited, trading as Screwfix, is a retailer of trade tools, accessories and hardware products based in the United Kingdom. [6] Founded in 1979 as the Woodscrew Supply Company, the company was acquired in July 1999 by Kingfisher plc , which also owns B&Q , and is listed on the London Stock Exchange .
It is typically used in environments where the gully has a moderate slope (less than 10%), small drainage area, and in regions where flood flows do not typically carry large rocks or boulders. [ 17 ] [ 15 ] In nearly all instances, erosion control blankets, which are biodegradable open-weave blankets, are used in conjunction with check dams.
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Brush gutter guards resemble pipe cleaners and are easy to install. They prevent large debris from clogging gutters, but are less effective at reducing smaller debris. Foam gutter guards are also easy to install. They fit into gutters, so they prevent large objects from obstructing waterflow, but they do not prevent algae and plant growth.
Late that afternoon Darren Doss, a slim, black-haired 22-year-old, watched as his fellow Marines zipped up the two body bags, placed them tenderly on stretchers and ran out to the waiting helicopter. Away it went with the remains of Smitty and Angus, and Doss with a heavy heart turned back into the tent.
A gully emptier (colloquially: "gully sucker") is a type of specialized tank truck with suction gear which can suck wastewater and mud and sludge out of hollows such as the hollows below drain grids in street gutters and carry it to a suitable disposal point. It needs to be able to suck out and pump through into its tank any road grit and ...