When one or both of my HVAC blowers are on, I get air through the condensate drain line. This goes up through the bath sink drain, which makes the bath smell funky. Sort of like the Pirates of the Caribbean ride, a musty smell. The vanity sink drain is not the cleanest place in the world, nor is the pan in the attic. Air running across these two places is smelly.
I'm pretty sure the hvac contractor hooked up the condensate drain right. It is teed in before the P trap. The last 16 inches of the condensate line is a flexible plastic or rubber hose that hooks to the tee. It is definitely not on the sewer side of the trap. The humidity is pretty dry these days at around 25%, so the trap in the attic is sure to be dry. There is not "a lot" of airflow, but certainly enough to make the bath smell funny after awhile. It took years to figure out the smell, but when both hvac units are on the smell gets funky. With one unit on, not too bad.
Are there any plumbing solutions I can try on the condensate line to fix this? I was considering maybe adding a loop in the hose to make another p trap, but in dry winters I am not sure how this trap would get filled with water.
Makes me wonder why condensate drains aren't run to the outside of the house. Basically, I have a 5/8" air leak between my attic and living space...
I'm pretty sure the hvac contractor hooked up the condensate drain right. It is teed in before the P trap. The last 16 inches of the condensate line is a flexible plastic or rubber hose that hooks to the tee. It is definitely not on the sewer side of the trap. The humidity is pretty dry these days at around 25%, so the trap in the attic is sure to be dry. There is not "a lot" of airflow, but certainly enough to make the bath smell funny after awhile. It took years to figure out the smell, but when both hvac units are on the smell gets funky. With one unit on, not too bad.
Are there any plumbing solutions I can try on the condensate line to fix this? I was considering maybe adding a loop in the hose to make another p trap, but in dry winters I am not sure how this trap would get filled with water.
Makes me wonder why condensate drains aren't run to the outside of the house. Basically, I have a 5/8" air leak between my attic and living space...