47+ How To Build Drainage For Retaining Wall Gif. How not to build a retaining wall. Building a retaining wall will help reduce erosion, improve water drainage, and create usable garden space.
If you decide to do this yourself, we suggest finding someone to help along, preferably someone with some sort of knowledge in the placing the drain.
This video shows you how to properly install a drainpipe behind your wall for proper drainage. Why proper drainage is important for retaining wall performance. Soil becomes saturated and freezes, heaving upward and breaking. This guide will teach you how to build a retaining wall with concrete blocks.