Televised ducts under slab floor. Ducts are pvc with metal fittings. There was no water at the time of the inspection but we can see where water is entering the ducts at a connection in the back of the house between the kitchen and the master bedroom. Downspouts an d gutters need to be corrected and possible grading. If after that is done water is still getting into the system then a sump pit and pump is suggested in the back of the unit outside.