Channel Drain Installation Tutorial

Drainage is a essential part of any patio. In this video, Mark Youde of the Landscaping Academy, demonstrates how to install a variety of different types of channel drain including both plastic and stainless steel.
For more information about our patio drainage products visit:
www.londonstone.co.uk/patio-drainage

[@johniban]

Why dry mix? It must go hard once wet ?

[@JoeAverage2006]

This is my question also. Is the patio also laid dry..?