This must be really simple, but I havent found any instructions and I'm unsure on how to proceed.
I need to make two storm drains (concrete boxes with grills on top and a pipe to direct rain water), from what I can imagine, I must lay a concrete slab, then lay the bricks, plaster the bricks with cement/sand/waterproof-additive. Is that it?
I feel like I'm missing something.
Best Answer
There are so many manufactured options for channel shaped surface drainage equipment that you should not have to create one from scratch. Search the internet. If you must create your own, your method with the slab and brick should work, or make some wood forms and make it entirely out of concrete. Make sure the surrounding soil is firm and compacted to support it or it may move or crack. And reinforce the concrete.