Why it matters to you
Air conditioners in humid Greater Houston pull a lot of water out of the air, and with many air handlers installed in attics, a clogged drain line can mean a stained or damaged ceiling rather than a puddle in the garage. A clog that trips the float switch is also a frequent reason a system suddenly stops cooling.
Practical guidance
If your drain line has an accessible cleanout or vent tee, a homeowner can pour a cup of plain white vinegar into it a few times a year with the system off. Clearing an existing clog with a vacuum, checking the trap and drain pan, and confirming overflow protection are part of a technician's maintenance visit.