Town of Milton MA to conduct smoke tests Sept. 19, 20, and 21

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Town of Milton MA to conduct smoke tests Sept. 19, 20, and 21

The Town of Milton will be conducting smoke tests Monday (9/19), Tuesday (9/20) and Wednesday (9/21). The testing will take place in the general area near Pagoda Circle and Audubon Rd. Residents in area will receive a flyer prior to testing. Testing will be performed by Flow Assessment. If you have any questions, please call the number provided in the flyer or please call the Engineering Department.

The purpose of smoke testing is to find potential points of inflow and infiltration in the public and private portions of the sanitary sewer system that could lead to high flows during storm events. Smoke testing can also help locate the following:

  • Buildings that have downspouts, cellar, yard or basement drains
  • Catch basins and parking lot drains
  • Any cross connections between sanitary sewers and storm drains
  • Defective sewer connections that could allow sewer gases into a building

Field crews will distribute a notice door to door approximately 24 to 48 hours in advance. Police, Fire and the Public Works Official will also be notified daily of work area.

During smoke testing, field crews blow air and smoke into the sanitary sewer system in the street and monitor where smoke escapes the system. The smoke, under pressure, will fill the main line as well as any connections and then follow a path of any leak to the ground surface, quickly revealing the source of the problem. Only enough force to overcome atmospheric pressure is required, and smoke should escape from building roof vents.

Smoke testing is the most efficient and cost effective way to locate and identify where unauthorized water is entering the public and private portion of the sewer system. The smoke is harmless and will disappear after only a few minutes. The testing is also a cost-effective way to find areas of the sewer system that need improvement. Smoke testing will also help identify plumbing leaks in buildings.

Sewer gases can cause health problems for building occupants.

The “smoke” is not true smoke and therefore not harmful. It will not harm your health or leave a stain and will disappear rapidly without leaving an odor.

If the smoke enters your home, it may make you cough, but the smoke is:

  • Non-toxic
  • Non-staining and odorless
  • Harmless to humans, pets, plants, food and material goods
  • Creates no fire hazard

Provided that your plumbing is installed and functioning properly, and provided “traps” are filled with water, smoke testing of the sewers allow smoke to get into your home. Drains that are used frequently should be okay. If you are not sure, simply run water down the drain for a minute to ensure that the trap is not dry. It is important to locate dry traps as they could allow sewer gases to enter the home. Dry traps are most commonly found in basement floor drains that are used only during rare flood events or in unused fixtures. Please thoroughly check your home.

If smoke enters your home during the test, it may indicate there are deficiencies in the plumbing that may allow potentially dangerous sewer gases to enter.

Since plumbing fixtures in your home or business are connected to the sanitary sewer system, there is the potential for the smoke to enter if the drains are not connected properly. This happens particularly under the following circumstances:

  • The vents connected to your building’s sewer pipes are inadequate, defective or improperly installed
  • The traps under sinks, tubs, basins, showers and other drains are dry, defective or improperly installed
  • The pipes, connections or seals in the wastewater drain system in and/or under your building are damaged, defective, have plugs missing or improperly installed

If smoke gets into the house, do not be alarmed. Open windows to allow ventilation and note the location of the smoke emission; smoke will clear within a few minutes Exit the building and notify smoke testing personnel in the area.

While crews might be in your area for a few hours, each actual smoke test setup takes approximately 15 minutes to complete. Most houses will only be within the testing area for one or two tests.

If and when you receive notice that smoke testing will take place, you should: check to see that all drain traps under basins, washing facilities and floor drains contain water; simply flush toilets and run or pour water into all drains, including unused fixtures and floor drains.

If there is an individual in your home or business who has reparatory problems and/or mobility limitations, or if your have any additional questions, contact Flow Assessment Services at 1-888-311-9799

Inspection crews will not need to enter your home unless smoke is present and you want them to help identify the defect. You are not required to allow entry to our crews or to be in your home at the time of testing.

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