If the damage is extensive and cannot be repaired with a local full circle band clamp or an electrofusion patch,
two mechanical fittings can be used by cutting out the damaged pipe and using an assembly with two mechanical
fittings with a properly sized and length of polyethylene pipe (or possibly another type of pipe, depending
on the fittings) in the middle.
Repair Assembly using Circumferentially Bolted Couplings
This method of repair is acceptable when area is wet or fusion equipment is not available.
All steps must be followed.
Repair Assembly using Radially Bolted Mechanical Restraint