I am a new home buyer, with no knowledge of HVAC systems, today while hosing down wasp nests around my carport, I sprayed water for maybe 2 minutes at a perforated metal carport/house ceiling panel which serves as an air intake to my home HVAC system. This became clear to me after I noticed a considerable amount of water on the concrete floor in the basement, the water was dripping from a ceiling air vent and a fluorescent fixture. Also there is an 8 foot one inch wide wet spot in the ceiling sheetrock. Any tips on how to proceed would be appreciated.