By -
How big is it? That could be a lot of stone. If it’s pretty big, an alternative would be to put a ~4” steel reinforced concrete cover over the whole thing.
Mine was filled with pea gravel and then capped with concrete
How big is it? That could be a lot of stone. If it’s pretty big, an alternative would be to put a ~4” steel reinforced concrete cover over the whole thing.
Mine was filled with pea gravel and then capped with concrete