Drain Cleaning and AC Condensate Lines
https://zukoski-group.chbe.illinois.edu/index/index.php/Getting_Your_AC_Ready_for_Summer_With_a_Comfort_Experts_Plan_to_Avoid_North_Fort_Worth_AC_Repair_Calls
Drain Cleaning and AC Condensate Lines Slow drains in the house and water near the air handler can share a cause