This simple and effective technique makes it possible to build most flood barriers over poor surfaces. Examples include loose, erosive, or porous surfaces like sand, gravel, grass, or uneven surfaces commonly encountered when surrounding a building with a flood barrier.
DISCLAIMER: This technique is up to the end user of the NOAQ Boxwall to endorse as Flood Defense Group does not assume liability for the final outcome of any flood defense installation outside of manufacturers warranty against product defect.