The time it takes for water to dry in an air conditioning (AC) drain line can vary depending on several factors, including the ambient humidity, temperature, and airflow conditions. However, on average, it can take anywhere from a few hours to a day or two for the water to evaporate and the drain line to dry up.
In more humid environments, where the air is already saturated with moisture, the drying process may be slower. Conversely, in dry and warm conditions with good airflow, the water can evaporate more quickly.
It's essential to ensure that the AC drain line is designed and installed correctly to allow proper drainage and prevent any standing water, which could lead to mold or bacterial growth. Regular maintenance of your air conditioning system, including checking and cleaning the drain line, is recommended to keep it functioning efficiently and prevent any potential issues related to water accumulation.