How to set up your retaining wall to drain properly.
Add drainage to existing retaining wall.
I m talking vertically now.
I have a low retaining wall 500 mm constructed of single brick.
The way to build this is dig down around the retaining wall probably about 2 feet behind it.
Retaining wall drainage technology has improved over the years.
If you build it out of solid concrete wall you do need to install some drainage pipe fill the trench with gravel around the pipe and make water exits in your wall for that pipe.
Behind that you d have filter cloth and then behind that you d have soil.
And then you re going to have stone that is about 12 inches away from the retaining wall.
For proper drainage the first 12 inches of space behind a retaining.
This boundary wall actually renders our low retaining wall obsolete but it also serves to make a.
No perforated drain pipe adding drains to the foundation of your retaining wall drainage is vital.
Backfill simply refers to the soil directly behind the wall.
Perforated drains allow the water to flow out of the wall preventing it from collapsing under the weight of too much water.
You should add sawdust or other absorbent particles to the stones to help them soak up the soil.
It is just over 6 metres long.
Measure 24 inches from one end of the wall and mark the lower face of the wall with a marking crayon.
Work with your landscaping expert to ensure that these holes are appropriately placed and sized to ensure that any excess water can drain through the wall.
Another important aspect of your retaining wall drainage plan is to have properly installed weep holes.
Position a coring tool mounting plate at the face of the wall and align the center of the plate at one of the marks.
So when water builds up behind your wall it will go through gravel into your drainage pipe and exit the wall in the openings that you will make for it.
These days many people choose to build their retaining walls with a layer of sand packed up against the stones to create a buffer.
While you re at it do also place a call.
Mark the wall at.
I d like some advice on how best to install some drainage behind an existing retaining wall.