Wrote off vinegar as an old wives tale for cleaning coils, tried it on a whim last Tuesday and now I owe my grandma an apology | Appliance Repairers - The Community Guide
My mom kept a jug of white vinegar under the sink my whole childhood and I always rolled my eyes at it. Then last summer my AC started smelling like a wet dog and my neighbor Ray told me to run vinegar through the drain line. I did it twice, let it sit overnight, and the smell was gone by the next afternoon. I was honestly shocked because I figured it was just something old people did to feel useful. Now I keep a spray bottle of half water half vinegar in the garage and use it on everything. My grandma would be so smug if she were still around to see it.