After the hydraulic cement cures applying Epoxy Concrete Bonder. That solves this problem. The injection process follows the procedures described before. The Injection resin forces the water out of the crack and through the adjacent ports. The resin has an amber color and does not look like water.
Pure resin flows from the higher port before capping and moving on.
The head of water will require increasing the injection pressure used. A prime example is bridge decks or other self supporting structures. The most common delamination is shearing of the concrete. This is commonly at the upper rebar mat. Another common situation is hollow plane that develop when concrete bridge piers are resurfaced.