How To Clean Ac Drain Line With Bleach. Probably the easiest thing to do would be to attach a shop vac to the far end of the line and let it suck. Turn off the power to your hvac system at the.
You could also use an air compressor to blow out the line from the inside. During the summer months, you can use bleach to clear out your drain line because the constant flow of condensation that comes from an operating unit will wash out any bleach residue. You should prefer pouring a cup of bleach in the mouth of the drain of the unit.
Repeating this several times should remove a small blockage.
However, if you are using bleach or vinegar to clean, you should be doing so every three or six months. You could also use an air compressor to blow out the line from the inside. Be sure to use a minimum of 2 cups once or twice per year. Have someone stand outside the house to see if water is draining out of the ac drain line.