I have been contemplating running the air line at the top of the durso standpipe out doors. However I can not convince my husband to run the skimmer airline through the basement wall. so probably running two lines through the walls is going to be an uphill battle. And the spot I could just drill myself would be below the snow. So I need his help. His concern is the cold air running through the line causing condensation. I get it. So lets insulate it...that is a bigger hole. I can’t wil here. ;Woot