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2. Manhole cover - Wikipedia

   en.wikipedia.org/wiki/Manhole_cover

   By contrast, the heaviest class F900 manhole cover can withstand a maximum weight of 90 tons, making it suitable for docks, airports, and other extreme heavy-duty applications. [ 31 ] EN 124 does not apply for gratings of prefabricated drainage channels (according to EN 1433) or floor and roof gullies in buildings (specified in EN 1253-1).

3. Tarpaulin - Wikipedia

   en.wikipedia.org/wiki/Tarpaulin

   An improvised tent using polytarp as a fly Abandoned homeless shelter using plastic tarp. A tarpaulin (/ t ɑːr ˈ p ɔː l ɪ n / tar-PAW-lin, [1] also US: / ˈ t ɑːr p ə l ɪ n / [2]) or tarp is a large sheet of strong, flexible, water-resistant or waterproof material, often cloth such as canvas or polyester coated with polyurethane, or made of plastics such as polyethylene.

4. Polyvinyl chloride - Wikipedia

   en.wikipedia.org/wiki/Polyvinyl_chloride

   This material has almost entirely replaced the use of cast iron for plumbing and drainage, being used for waste pipes, drainpipes, gutters and downspouts. PVC is known as having strong resistance against chemicals, sunlight, and oxidation from water. [42] Double glazed units

5. Cellular confinement - Wikipedia

   en.wikipedia.org/wiki/Cellular_confinement

   Common to the new Guidelines is a performance-based approach, in which engineering parameters, such as modulus, plastic deformation and tensile strength are key factors. Performance-based testing is critical, as heavy-duty infrastructure applications expose geocells to much higher dynamic stresses for longer lifespans.

6. Plastic pipework - Wikipedia

   en.wikipedia.org/wiki/Plastic_pipework

   Plastic Pipe lengths manufactured in Australia by extruding HDPE material.. Plastic pipe is a tubular section, or hollow cylinder, made of plastic.It is usually, but not necessarily, of circular cross-section, used mainly to convey substances which can flow—liquids and gases (fluids), slurries, powders and masses of small solids.

7. Grinder pump - Wikipedia

   en.wikipedia.org/wiki/Grinder_pump

   Homeowners are never free to dump everything down their drains, even if their home has a grinder pump. Feminine hygiene products, diapers, kitty litter, paint, oil (both motor oil and cooking oils), etc. should not be flushed or poured down any drain, whether the home is connected to a gravity sewer system, septic tank, grinder pump, or cesspool.