[Blackhawk]

Well, after looking at this further. I don't think it would be good to attach my condensate line to the fixture side of the laundry trap in my situation. My HVAC unit is in the same room with my laundry sink. The condensate exit from the HVAC would be only a couple of inches higher than the bottom of the sink. I think that you would want the condensate exit to be at least as high as the top of the sink. If I ever dumped a huge bucket of water in the laundry sink, I could see the water backing up into the condensate line before it could drain out of the sink trap. I think that I will just run the condensate line to a condensate pump under my sink and then let it pump the condensate up and over the side of the sink. If anyone has any simpler ideas that would save me the cost of a pump, I am all ears.

Hayzee - I agree that if I could have attached my condensate line to the fixture side of the sink trap, I could eliminate the condensate line trap. But, I have read that the condensate line trap is recommended if you have it draining to the open, as through a wall to the outside or to a sump pump. What I read explained that the trap helps to prevent cold air from leaking out and also prevents insects from getting into the HVAC unit.