I need to install a wash machine drain pan. The drain will not be tied into the waste water system because the water would evaporate from the trap and allow sewer gas to enter the home. I also have no drain in the house I can allow the pan's drain line to empty into.
Thus, it seems the drain line needs to go directly outside and end somewhere where it will be noticed if water is flowing out of it. The problem is I don't want to create a lot of cold air flow into the house through this drain.
I'm sure there must be good solutions to this, but I have no idea what they are.
Thanks for any help.