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Originally Posted by Sherrilee
We have never done this either. Ours working fine — was told it wasn’t always necessary.
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You will eventually have a flood with water entering the garage and/or air return duct. Then black mold will grow in the duct and you will blow that through the entire house where mold will start to grow in every room in your house. Eventually you will get sick from it and will have to decontaminate the house.
Our drain line has a sensor that shuts off the A/C if the line gets plugged up and prevents flooding. I insisted this to be added when we got a new A/C.
Cleaning out the drain line is a MUST. Once a year is recommended. More often if you are worried about this.
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