Injecting a urethane resin under pressure will seal and fill these voids and pockets thus stopping the leak.
How to fix leak in concrete wall.
Squarely cut or undercut the edges of the crack.
Mix hydraulic water stop by adding.
Project instructions step 1.
Using a masonry chisel enlarge the crack to a minimum inch width and then remove all loose material.
Use a nail to align injection points.
A honeycomb area in a foundation is the result of improper vibration or settling of the concrete thus leaving voids and pockets in the wall.
Concrete wall crack repair in 8 steps step 1.
It is important not to create v shaped edges as the hydraulic.
First scrub the crack clean of any loose concrete paint or old filler using a wire brush.
Paint a generous coating of this material onto the wall working the product in all directions to completely seal any pinholes.