We tried adding a small loop between 36" header (collecting from 6 drums) and the 24" header since failure is on the 24" header. Stresses are lower and the line is much better but the problem is the client wants a fast solution without shutdown since the planned turn-around is after two years. I tried increasing the wall thickness at failure points and also changing supports configurations and locations but the best solution is the loop. Anybody have any ideas we can try to solve without a shutdown , cutting pipes and adding loop.