Compact the bottom of the hole behind the retaining wall to get it flat.
Install french drain behind retaining wall.
Luckily you can avoid these problems by installing a french drain.
If you re building a retaining wall add a french drain behind the first course of stones or blocks.
This video shows you how to properly install a drainpipe behind your wall for prop.
Why proper drainage is important for retaining wall performance.
Mar 19 2014 when building a retaining wall lay perforated drainage tubing at the base of the wall slightly above ground level so runoff can drain out without undermining your wall.
Pour 1 to 2 inch washed drainage rock into the hole along the base of the wall about 4 to 6 inches deep.
The pipe should rest on the same compacted gravel base or concrete footing that supports the wall.
If you re building a retaining wall on a hillside.
The design of a properly built retaining wall resists the force of the soil behind it and prevents caving buckling or leaning.
Learning how to build a retaining wall can be fun with these helpful tips.
Drainage problems in your yard can lead to pooling mold or water damage in or around your home.
Otherwise water moving down the hill will build up behind the wall and undermine it.