For proper drainage the first 12 inches of space behind a retaining wall should be filled with crushed stone or gravel.
Install french drain behind retaining wall.
Use drainage tubing behind the wall slope the tubing from one end of the wall to the other or from the ends to the middle.
This video shows you how to properly install a drainpipe behind your wall for prop.
Leave the filter fabric open with at least 10 inches of excess fabric at the sides.
Otherwise water moving down the hill will build up behind the wall and undermine it.
Learning how to build a retaining wall can be fun with these helpful tips.
Fabric keeps soil from leeching out of walls.
If you re building a retaining wall on a hillside if you re building a retaining wall add a french drain behind the first course of stones or blocks.
Compact the bottom of the hole behind the retaining wall to get it flat.
Install it in a u shape way behind the wall.
To keep the french drain free of dirt silt and tree roots lay water permeable filter fabric or weed barrier over the gravel bedding in the trench.
Backfill simply refers to the soil directly behind the wall.
Pour 1 to 2 inch washed drainage rock into the hole along the base of the wall about 4 to 6 inches deep.