Thanks for the suggestions /thoughts guys.
Bill, Temps have been in the mid 20's during the day and low teens at night for several days. Your second post is where I was heading. I think it has to be the main feed from the city connection as I do have water in the lav and toilet. I have been under that part of the unit and added extra insulation but it did not fix the issue. I used the hard foam board to cover the lines rather than the foam tubes that wrap them because of space issues. My only thought now is that I will have to use heat tape and leave it hanging out as you point out.
Now I have to do this in these temps! Yeehaw.
Craig
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