If a home has a bathroom, plumbing fixture, or basement floor drain that is not used or is seldom used, traps should be filled by running water in the fixtures the day before scheduled smoke testing and on a monthly basis thereafter in order to prevent sewer gas from entering the home or office.
These tests involve blowing harmless smoke into parts of the City sanitary sewer system to find damage, improper connections, and where unwanted storm water may be entering the City’s sanitary sewer system. As a result, smoke may be seen coming from roof vents, building foundations, catch basins, clean-outs, downspouts, broken sewer laterals or manhole covers. The smoke will not enter your home or business, if it is properly plumbed, vented, and the water traps contain water.
Click to read the Notice and Map regarding smoke testing.
For further information contact the Piedmont Public Works Department at 510/420-3070.