We had the concrete removed to expose said vent bricks, but at some point, someone decided to fill the bay with sand. WHY, WHO?!
For some time the sand acted like a giant litter tray for the local wildlife. Before being able to tidy the front the sand had to be shifted. Without a wheelbarrow I transported the sand from the front to the back in 15 bin bags. Who would've thought sand could weigh so much!
2 hours, 8 bags of gravel and some weed membrane later, job done...for now.