The Pre-sloped Trench Drain System is designed for a variety of applications - both indoors and outdoors. It is made of polymer concrete, a high strength, and chemical resistant, closed cell material. As a result, it offers a high degree of chemical resistance, has a water absorption value of less than one percent, and is more than four times stronger than ordinary Portland Cement Concrete. Combining simplified installation, high durability and lower overall cost, the systems are proven superior in surface drainage. If the apertures in the grating are too large it is possible for heels of shoes to get trapped in the grating and cause injury. With the growth of litigation due to injury caused by incorrect product choice, this area has become much more important in locations where drainage systems are heavily trafficked by humans. Typical of such locations are railway stations, petrol stations, shopping malls, restaurants, kitchens, schools and hospitals. The owner of the premises is often the target of litigation but specifies and installer also bear responsibility, so the choice of the right product is extremely important.

Benefits:
The Pre-sloped Drain Systems are designed for a variety of applications, both indoors and outdoors. It is made of a high strength, chemical resistant, composite material. As a result, drains offer a high degree of chemical resistance and have a water absorption value of less than one percent. Rapid drainage, durability and resistance to freeze/thaw cycles make the product ideal for outdoor applications. The product is more than four times stronger than ordinary Portland Cement Concrete. The 24" and 48" components make it extremely versatile. With the proper components, a flow rate of 900 GPM per outlet is attainable. It also provides with the high capacity drain system (a pultruded FRP drain) which can achieve flow rates of more than 3000 GPM for 120' of drain. Combining simplified installation, high durability and lower overall cost, the systems are proven superior in surface drainage.

Conclusion:
Over the last few years pre-sloped drainage has been at the forefront in the manufacture of user friendly gratings for drainage systems. To collect water it is essential that the drain systems have slots or holes in the grating which allow the water to fall into the channel or pit. There is however certain applications where, although the collection of water is paramount, the drain system has to be 'safe' for use by humans.

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