1. Relieve hydrostatic pressure.
Make weep holes into the cells of each block (4" to 6" in from each mortar-joint ) at the point where the floor and wall meet. Solid poured concrete walls have no cavities, so weep holes are not required.
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2. Prepare the surface properly.
To properly bond and seal the system to the concrete floor, the floor area along the wall approximately 3" wide must be stripped to bare concrete. To remove all paint or tile adhesive, use a 3M metal paint stripper wheel with your electric drill.
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3.Clean the surface properly.
It’s very important that you do this step properly. After floor area has been stripped, wash with clear water and sponge to remove all dirt and dust. When finished feel the area with your fingers for any loose grit left behind.
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