[Vwdiesel] Injector return lines

[Travis .]

Saturday I ran into an issue where my injector return lines blew off and I couldn't keep on. I managed to get the 6 miles home with an almost empty tank of fuel. I attempted to clip and push on. Even used some from the rabbit truck. Finally I ordered 8 feet from Parts Place as I don't know any others that sell that size line. I installed new-same issue. By the end-I had zip tied 3 connections. Any tips as to why I would suddenly need to do that after about 4 years of no issues? Would the injectors be failing dumping more fuel into the return lines pressurizing them more. It isn't the last one in the line. It is both lines on the 2nd from the tranny side and the 2nd to the 3rd connection as well. I can see all the lines move as they pressurize when at high RPM a lot it seems. But the same ones were leaking the whole time. 

Travis G