A soakaway and pipe is required for 20m sq of pitched roof and for a French drain at the base of a westerly facing wall.
The pipe (5.5m) from the wall to the soakaway will go under a driveway. I have seen a 110mm pipe inside a 160mm pipe under a drive to allow for weigh to the cars. Is this the best method?
The French drain is required at the base of the rendered wall.
I excavated the soil which was there to give access for building.
Two options:
1. Excavate more soil and build a retaining wall for the soil. Not sure how to build a retaining wall.
2. Clean aggregate, (20mm?) into the space instead of soil.
Option 2 is preferred due to less work, but there will be the weight of the aggregate against the wall. It is a max height of 900mm sloping to zero over 5m. With option two is a fleece advised against the soil to keep the aggregate clean of soil?
The pipe (5.5m) from the wall to the soakaway will go under a driveway. I have seen a 110mm pipe inside a 160mm pipe under a drive to allow for weigh to the cars. Is this the best method?
The French drain is required at the base of the rendered wall.
I excavated the soil which was there to give access for building.
Two options:
1. Excavate more soil and build a retaining wall for the soil. Not sure how to build a retaining wall.
2. Clean aggregate, (20mm?) into the space instead of soil.
Option 2 is preferred due to less work, but there will be the weight of the aggregate against the wall. It is a max height of 900mm sloping to zero over 5m. With option two is a fleece advised against the soil to keep the aggregate clean of soil?
