A 1/2 inch line will not help I don't think. I have a 3/4 inch line that keeps freezing from condensation. The line comes out of the barn 5 feet off the ground and slopes down to the ground in 25 feet. This 25 foot run freezes solid every 2 weeks. I put in two valves at the compressor so I can dump alc. in the line when the pressure climbs on the gauge.
