The test area borders are Jeffords Street between Lake and Hillcrest avenues. The work is expected to last through Sept. 20.
Here is how the test works: White smoke is sent into the sewer lines and manholes to locate broken pipes and other defects. The smoke then exits the system from vent pipes on home roofs.
The smoke is non-toxic, leaves no residue and creates no fire hazard. The smoke will not enter a house unless there is defective plumbing or the drain traps are dry.
If potential problems are found on private property, residents will be notified of repairs the may need to make.
Call 727-562-4960 or Clearwater customer service at 727-562-4600.