Ductwork video inspection service call. Televised ducts under slab floor. Ducts are concrete ducts possibly transite with metal fittings. Duct run in living room ion front of house is lower than all others in the house and gets water during times of rain. Suggest extending downspouts first but if that does not solve the problem a sump pit and pump should be installed in the garage and discharge out front or side of garage. Once water is resolved the ducts should be spray lied with Duct Armor duct lining material.