It’s not upto any official standard. It should be 5mtrs away and more like 1 to 1.5cm/mtrs, lined with membrane and filled with clean stone or AquaCells.
The average one we dig in would be 4 AquaCells but if I did my own i’d join the ACO’s into a drain via a silt trap.
The MOT amount varies. I repair drains and water supply leaks so dig up all sorts of surfaces and from what I see 100mm would be more than average, some have 50mm, some just sand. The more the merrier I say.
The average one we dig in would be 4 AquaCells but if I did my own i’d join the ACO’s into a drain via a silt trap.
The MOT amount varies. I repair drains and water supply leaks so dig up all sorts of surfaces and from what I see 100mm would be more than average, some have 50mm, some just sand. The more the merrier I say.