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How to install a channel drainage system

Get a step by step instruction guide on how to install a channel drainage system.

Before installing make sure you have a plan for the system and have all the necessary parts you need, which should be covered in this guide.

Channel Drain installation.
  1. Clear the area of tarmac, paving or bricks.
  2. Once you have planned out the route of your channel drain you will need to remove the hard surface to accomodate for the trench.
  3. Dig the trench
  4. Dig a trench which is large enough in height to accommodate a 50mm compacted sand base at the bottom, and is wide enough so that 100mm of concrete side fill on each side can surround the channel. As you dig the trench you need to allow for a fall of around 5mm per every 1m length of channel drain. Fixing a length of string along the trench to mark the height of where the grating should finish (roughly 2mm below the final surface level) can help you by acting as a guide.
  5. Lay the drain
  6. Start installing the channel at the lowest point to ensure that if you need to cut any lengths, they’re at the furthest point form the outlet. connect the lengths as you go along, they will slot into the next one at the end. When you get to the end, the last length can be cut to fit the space needed. Once finished, install an end cap at the highest point and seal the joints with a silicone sealant to ensure the system has longevity and connect the lowest point of the drain to an underground drainage pipe.
  7. Place the grate
  8. Place the grating onto the channel making sure it is securley attached and cover the grating with tape or something similar. Pour concrete into the trench, finishing 2mm above the surface of the grate. Once finished you need to wait at least 72 hours for the channel to cure and set in place before vehicles can drive over or the grates can be removed.

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