When Radcon is applied and becomes touch dry (2-6 hours) a first watering is absolutely critical for Radcon to become lifetime active.
The second and thirds specified waterings are to allow sufficient product expansion inside the concrete to seal both the matrix and cracks present.

Providing the surface is visually dry, ie no visual damp spots, Radcon may be applied. If Radcon is applied to wet concrete or concrete with damp spots, then Radcon will not be absorbed in through capillary action.

This means that any damp spots treated with Radcon would simply see the product "not absorb" and wash away during the first watering procedure.

Unfortunately when builders construct structurally volatile sites and they begin to leak it is the waterproofing supplier first in the firing line.
There are some very simple observations and trials which can be helpful before the University experts with their potentiometres are brought in.
For example either side of a working crack usually causes a fretting at the edges where small chips of concrete crack away.
If in doubt a simple test is to epoxy some glass microscope slides either side of the crack and monitor.

Radcon uses water to waterproof in the same way Volclay (volcanic bentonite clay) reacts.
Only instead of being on the surface Radcon is creating the same barrier within the first few millimeters of Radcon penetrated concrete.
Given that tests confirm 14mm to 17 mm product penetration in 40 m.p.a. concrete, any water or salts penetrating the first 2-3 mm is of no concern to the structures lifetime durability given any reinforcement maintains 20mm + concrete top cover.

Providing the concrete is cementitious in nature (calcium leaching prone) we have University documented evidence showing one off settlement cracks up to 1.00mm occurring without actual water egress from the underside of the slab (University of New South Wales)
As this one off settlement took place, during rain periods Radcon was growing as the crack itself grew.
This is further evidenced in Earthquake zones of Taiwan, Saipan, (Newcastle Australia).
Earthquakes dislodged Radcon sealed concrete sites allowing some leakage through already present cracks.

Radcon when applied requires capillary suction into dry concrete prior to the application watering procedure.
Therefore Radcon cannot be applied to wet concrete be it simply damp or have water permeating through. Crystal growth materials are better suited to these applications (Radmyx).
Radcon should not be applied on any concrete surfaces where the general matrix and/or cracks present have been contaminated with water repellent materials.