Black water pipes are used to transport and provide dirty or grey water in many industrial and agricultural applications. When installed below ground these systems are normally used to irrigate agricultural land. The black water pipe can be utilised above ground providing a very quick and effective way of carrying water without the need to bury the pipe and is also UV stable.. Tested to a 12 bar pressure rating the pipes are available in a full range of sizes, 20mm, 25mm, 32mm, 50mm & 63mm. Generally a larger pipe is used for the main line and a smaller pipe installed to carry the water to its final destination.