TwinWall surface and storm water drainage system

TwinWall is a gravity surface and stormwater drainage system intended for use as a direct alternative to all non-pressurised gravity drainage systems other than where Local Authority adoption is necessary. Smaller diameters are manufactured from high density polyethylene and large diameters from polypropylene. Typical applications include highway filter and carrier drains, rail track drainage, unadoptable surface water drains, for example, on industrial or commercial developments.

UltraRib

UltraRib is manufactured by an extrusion process in which the two layers are extruded simultaneously, one inside the other, and heat welded together in one continuous process. The system employs fully socketed joints for security and ease of installation. The design of the socket prevents accidental displacement of the 'O' ring during installation, and the resulting joint provides a flush fit between the internal bore of the pipe and the fitting.

OsmaDrain underground drainage system

The OsmaDrain system is designed for use in gravity drainage installations at depths of up to 10m, with outfalls into Local Authority sewers, private treatment plants, cesspools, and for the drainage of surface water into soakaways or water courses.

The range also includes slotted OsmaDrain pipes in 110 160mm diameters in 6m lengths. These pipes are normally used in French drain applications, for example, draining rainwater or run-off from paved or hard surfaced areas such as roads, car parks and airfields. Slotted pipes can also be used to dispose of the effluent from septic tanks by subsurface irrigations.

Land Drain can be used in a variety of civil engineering and agricultural situations where its use will improve the condition, traffic ability and workability of soils. Typical applications include draining ground water from agricultural areas, small sites, parks and gardens, and preventing a build-up of ground water in embankments and verges, or behind retaining walls. It can also be used as a French drain in conjunction with a surface water drainage scheme. In agricultural applications, a proper land drainage scheme using Land Drain can alleviate crop damage due to waterlogged and flooded conditions, and will often allow planting on land previously unfit for agriculture.