I'm looking at building an insulated trunk line from my keezer to the first floor. The trunk line would carry 3 product lines and a recirculating coolant line. The run length would be about 9 feet out of the keezer (it is almost directly below where I want the taps on the next floor). I keep my keezer at about 38 degrees, and would keep the coolant and pump inside the keezer, not a seperate freezer. Anybody have any experience with keezer temperature coolant cooling the trunk lines? Hate to go through the effort and not have coolant lines that are cool enough to keep the product lines cool.