- 28 Dec 2007
- Reaction score
Hello there, we are building a 75ft long x 4.5ft tall soil retaining wall around our extension. regarding drainage-on the first row we have left weep holes every 3ft and are also fitting a drainage pipe behind the wall-one with holes in it. I know that we need to put some kind of gravel ontop of the pipe, but what kind. Would pea gravel be okay?-our land is mostly clay.