Are you having issues where the drip line connects to the main supply line? I am having the same issue so I am going to switch to pvc pipe and these:
Barb Tubing Coupling Adapter-Thread (1/4") x Barb 1/4"- 10 pack https://www.amazon.com/dp/B019866O1U/ref=cm_sw_r_other_apa_Osn-ybXV99Q40
Screws into the pipe so it doesn't leak as bad.