Hi everyone, I am aiming to do a gravel driveway job myself but am unsure what to do with the drain. I am going to remove the current driveway blocks/stones and replace with gravel. The driveway is quite uneven in most places and slopes downward toward the drain also. I think most of it should be fairly easy as there is a layer of sand under the current driveway, so i'm guessing I can lay the first lot of base gravel on that then the finish gravel. But I'm unsure what I should do with the drain? Any advice is appreciated as this is my first time doing a driveway!