We're looking to install some channel drainage at the top and bottom of a steep side path to try and help reduce the stormwater run off (which comes down the driveway and off the back of the carport which is about a meter higher than the path). We're intending to run the ends of the drains into some ag pipe and then along the side garden beds rather than plumbing into storm water.
We've been having a look at this system - http://www.reln.com.au/pdfs/Storm_Mate_Brochure.pdf - but would prefer not to pour concrete. At present the surface is a compacted toppings within treated pine sleeper steps. We are intending to replace the topping-step treads with pavers and a larger grade gravel (to help prevent it washing away).
From what I can gather from the (very little) information available in the brochures and online, the purpose of the concrete is to reinforce the plastic for use in driveways etc where it would need to withstand significant weights. I am wondering whether, given ours will only be subjected to foot traffic, we could get away with simply burying the drain without concreting?
Appreciate any advice/thoughts.