LBZ coolant leak.

I have 2006 lbz and I noticed a coolant leak coming from heater inlet so I replaced both inlet and outlet line. Purged the air for a bit till it heated up and thought I was good to go. That was 3 months ago. (All this coolant loss etc… started happening after I replaced heater inlet/outlet lines) I still lose about an inch of coolant in my reservoir every 5 days but seems to lose more when it’s cold. I did a cold test in the morning after it sat all night and my upper radiator line was soft after 15 min of running. (Hoping it’s not head gasket issues lol). As it’s cooling off I noticed that it pushes coolant out the release hose on reservoir but especially the next morning when I turned it on it started coming out a little more. Checked for coolant leaks with dye and the only spot I saw A LITTLE after 3 days of driving was by the reservoir hose. I feel like it’s some air pocket that’s stuck but not sure! Any info would be helpful!!