dslove
New Member
I have leaking underground return air ducts outside the perimeter of the house that leak when it rains, inducing a musty odor in the house. I need a solution to replace/mitigate (flex hose?) the old ductwork. Replacement has been quoted at enormous sums and requires digging up patio areas and walkways. The entire vent is about 60 feet long and has three intakes along the course. The furnace/AC is located in an exterior room at the corner of the house (1950s style Adobe home). Air exhaust is through the ceiling. Due to the configuration and fairly new, energy efficient system, replacing with new modular A/C systems is not my first choice. Anyone have suggestions? One company told me his dad used to work on this type of setup and they used cement piping for underground sections. Vent from exterior wall into ground appear to be galvanized sheetmetal. What is underground here is unknown.
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