Replacing Gravel with Lawn
Hi, we have just moved to a new house with a small Garden, and my 1st job is to redo the back Garden. The back is currently half paved and half gravel - I'm replacing the Gravel with Lawn. So far I have dug about 10CM depth of Gravel out, below that, there's about 6-7cm of compacted sand. I've dug a little bit of this to see what's under it, and got down to some sort of weed matt. My question is do I need to dig out this sand too, and replace it all with top soil, or can I just put top soil on top of the sand and then Turf over the top?