If the source of the leak is not cut off, the concrete will need it. There is no way to predict how long it takes for concrete to dry because it depends on the extent of the leak. A small surface leak can dry up in a few hours, but a generalized leak can take days to resolve. If the source of the leak is not cut off, the concrete will need continuous drying efforts.
If the water comes from a leaking pipe, shut off the water supply to the leaker so that you can properly dry the concrete. When moisture is expelled or sucked in from behind walls and floorboards, dehumidifiers prevent spent water from re-condensing on surfaces and causing additional damage. When water seeps deep into a building and becomes stagnant, it can cause extensive damage to floors, walls, and ceilings. Drying Leaky Concrete: Important Tip “Don't expect water leaks to fix themselves or that water damage to your property will dry naturally.
