Cut a section of polyethylene tube approximately two feet longer than the pipe section.  Remove all lumps of clay, mud, cinders, or other material that might have accumulated on the pipe surface during storage.  Slip the polyethylene tube around the pipe, starting at the spigot end.  Bunch the tube accordion-fashion on the end of the pipe.  Pull back the overhanging end of the tube until it clears the pipe end.

Dig a shallow bell hole in the trench bottom at the joint location to facilitate installation of the polyethylene tube.  Lower the pipe into the trench and make up the pipe joint with the preceding section of pipe.

Move the cable to the bell end of the pipe and lift the pipe slightly to provide enough clearance to easily slide the tube.  Spread the tube over the entire barrel of the pipe.  Note:  Make sure that no dirt or other bedding material becomes trapped between the wrap and the pipe.

Make the overlap of the polyethylene tube by pulling back the bunched polyethylene from the preceding length of pipe and securing it in place.  Note:  The polyethylene may be secured in place by using tape, string, plastic tie straps, or any other material capable of holding the polyethylene encasement snugly against the pipe.

Overlap the secured tube end with the tube end of the new pipe section.  Secure the new tube end in place.

Take up slack in the tube along the barrel of the pipe to make a snug, but not tight, fit.  Fold excess polyethylene back over the top of the pipe.

Secure the fold at several locations along the pipe barrel (approximately every three feet).

Repair all small rips, tears, or other tube damage with adhesive tape.  If the polyethylene is badly damaged, repair the damaged area with a sheet of polyethylene and seal the edges of the repair with adhesive tape.

Carefully backfill the pipe according to the AWWA C600 standard for backfill procedure.  To prevent damage during backfilling, allow adequate slack in the tube at the joint.  Backfill should be free of cinders, rocks, boulders, nails, sticks, or other materials that might damage the polyethylene.  Avoid damaging the polyethylene when using tamping devices.