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.
Add drainage to existing retaining wall.
For proper drainage the first 12 inches of space behind a retaining.
How to set up your retaining wall to drain properly.
Perforated drains allow the water to flow out of the wall preventing it from collapsing under the weight of too much water.
Mark the wall at.
I d like some advice on how best to install some drainage behind an existing retaining wall.
Backfill simply refers to the soil directly behind the wall.
The way to build this is dig down around the retaining wall probably about 2 feet behind it.
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.
I m talking vertically now.
This boundary wall actually renders our low retaining wall obsolete but it also serves to make a.
You may have to submit plans for your wall and schedule a property inspection to ensure that building a retaining wall won t create drainage problems.
Measure 24 inches from one end of the wall and mark the lower face of the wall with a marking crayon.
No perforated drain pipe adding drains to the foundation of your retaining wall drainage is vital.
It is just over 6 metres long.
Measure up 6 inches from the ground and.
Position a coring tool mounting plate at the face of the wall and align the center of the plate at one of the marks.
And then you re going to have stone that is about 12 inches away from the retaining wall.
Behind that you d have filter cloth and then behind that you d have soil.
I have a low retaining wall 500 mm constructed of single brick.
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.
While you re at it do also place a call.
You should add sawdust or other absorbent particles to the stones to help them soak up the soil.
Another important aspect of your retaining wall drainage plan is to have properly installed weep holes.