Methodology
Ventilation and odor control used:
Fresh air pumped into pipe past upstream air dam; maintained sealed lids during non-work periods, and adequate ventilation to carry odors downstream during the work periods.
Rehab method used:
Danby Spiral Lok (same cross section as PL III but only 8" wide and different edge locking design) with full annulus grouting with cementitious grout with minimum compressive strength of 3000 psi.
Cleaning method used (if required) and who cleaned the line:
High pressure (3,000 psi) water blasting performed by the Danby licensee (Taggart Construction).
Method of flow bypass or diversion, if used:
Flows 100% pumped/diverted via buried temporary HDPE pipe.