Frozen Drain Line !link! -
How do you know it’s a freeze and not just a standard clog?
During winter (or in cold climates year-round), the condensate drain line—the PVC pipe that carries excess water from your furnace or air conditioner—can freeze. This creates an ice blockage, trapping water inside your HVAC system. frozen drain line
A: No. Salt corrodes PVC glue joints and metal drain pans. Stick to hot water or heat tape. How do you know it’s a freeze and not just a standard clog