Just pour a cup of bleach in the drain line's access opening near the indoor air conditioning unit. This will kill any algae, mold or mildew that has formed in the pipe. If the condensate drain line is clogged, you will need to use a wet-dry vacuum or a special pump to unclog the line.
Is bleach safe for AC?
Mold, mildew and algae will grow in your air conditioner condensation drain year-round. Using bleach during the summer months is safe as long as the unit is operating because the constant flow of condensation will wash out any bleach residue.
How much bleach does it take to unclog an AC drain?
Poke that stiff, thin wire brush through this end as well, so you can clean out any easily reachable AC drain line clogs. Put on your gloves and pour a mixture of one cup bleach and one cup water into the top of the drain pipe. (Make sure you follow safety guidelines for working with bleach.) Wait thirty minutes.Jun 18, 2018
Is bleach or vinegar better for AC drain line?
We recommend using vinegar instead of a bleach solution because bleach can be harmful to your AC system if your drain line has copper tubing. Using vinegar will not damage your system. Spilling bleach can also ruin carpet or clothing, whereas vinegar will just leave a strong odor.Apr 16, 2019
Is bleach bad for AC drain line?
Bleach and Vinegar are Corrosive to metals The reason you shouldn't use bleach or vinegar to clean your AC drain line all boils down to the fact that these chemicals are corrosive to metals. In other words, they literally eat away at metal.