When an old pipe has structurally failed or if its diameter is needed to be enlarged , then a No-Dig replacement by using pipe Bursting technique is the answer to solve these type of problems with a minimum disturbance to the environment . Using a winch chain to be installed into the old pipe and connected to the expanding (bursting) head , this head moves forward by the hydraulic winch to burst the old pipe and replace it by a new Poly Ethyline (PE) which is the attached to the rear head of the jacking ram