Build retaining walls (part 2)

To build a retaining wall step by step, you have to follow the instruction below:
👉Step 4: Install the remaining layers
Once you finish the first layer, the remains are very easy to complete. Simply add one block by and by, spreading the edges. Assemble the blocks such that they fit snuggly on top of one another. Sometimes pebbles and dirt will enter between them and ruin your perfectly level wall.  Sweep the blocks well between rows using a brush.
Add extra 3/4 inches drainage gravel after each row of blocks, dampen it with a hose, and crush it with a tamper or plate compactor. Remember to leave the area enough to install a perforated pipe to carry the water from underground to each end of the retaining wall.
👉Step 5: Use construction adhesive to secure the top row of blocks
After you've laid the last layer of blocks, use construction adhesive, such as a caulking gun, to apply glue to the layer behind each block and place them back down. Make sure that you won't let any dirt or soil enter between the blocks.
👉Step 6: Backfill with soil
Fill up the gap at the back of the blocks with soil rather than gravel for the final layer. This will give your new retaining wall a nice clean appearance and permit you to put flowers on top of it.
Here is some information for your reference, if you have any questions, please contact GREEN ARBOR LANDSCAPING (206) 265-2940 for advice.