Spool Repairs

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

Step 1

Step 3

Step 2

Step 4


  • 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