The clay will act as a barrier between the clay and the water. This can be done by adding a layer of clay to the soil. It is important to provide a way for water to escape from the walls because clay is very weak when wet.
Poor draining soils, such as clay behind the wall, need to be drainage incorporated into the wall system. The walls need a drainage system regardless of the wall height. Does a 2 foot retaining wall need drainage? You can also fill with sand or gravel if you have access to it. If you don’t have a backfill, fill the hole with dirt. The gravel can be poured after every course of sanding. The sand will not be able to get between the blocks. First cover the backside of the retaining wall with landscape fabric if you use sand. You can fill the wall with gravel or sand. What kind of material do you put behind a retaining wall? If you fill it too much, you’ll have to dig a new hole to make room for the new gravel, which will cost you money and time. You can also use a garden hose to fill your hole, but be careful not to overfill it. This will allow water to drain out of your yard. Next, drill a hole through the fabric and into the ground. Measure and cut the space you need to build the wall. How do you put drainage behind a retaining wall?ĭo you put filter fabric behind retaining wall?įilter fabric is an essential step in the process of building a retaining wall because it lets water through but prevents dirt, bark dust, or other landscaping from migrating into your gravel base.What is the best material to backfill a retaining wall?.How do you stop a retaining wall from moving?.Does a 2 foot retaining wall need drainage?.What kind of material do you put behind a retaining wall?.Do you put filter fabric behind retaining wall?.
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