The old ducts probably rusted away from the water seepage so someone simply removed the rusted material which left a round tunnel for the return.
Water in floor vents.
Use a dish cleaning tool like a scrub brush or sponge to clean the slats of the vent and other narrow crevices.
No they have standing water and a natural humidifier.
Only when i run the dish washer and run the washing machine.
Each time the heating or cooling system operates the air moving through the ducts can blast millions of mold spores throughout the house.
I have been told to fill the vents with concrete or expanding foam and abandon them lift my furnace tap into the down flow and put a new vent in the ceiling in that room and even get.
Clean your vents in warm water and dish soap.
If you see water in any vent you should examine all of the other boots and ducts for water.
Anonymous i have water in my floor ac air vents.
What is the best way to fix this situation.
One vent has completely corroded on the bottom then and the ground water seeps in and fills that whole section of vents.
Ldapkus linas dapkus cmi january 4 2009 7 55pm 5.
My vents new by.
Not if the water is seeping in through hairline cracks in the slab.
In this room the two floor vents fill with water when we get rain.
The water in the ducts can initiate the growth of mold.
Wet your tool with water apply soap to it and clean each vent.
Water in buried heating and cooling ducts can cause serious health problems.