Redwood
Master Plumber
Basically in a smoke test, the openings in the system are all plugged. The line out to the sewer or, septic is plugged, the vents are all plugged etc. then the last opening I usually use a roof vent the testing apparatus is set up. I make sure all doors windows etc. are closed up then the smoke generator is used to pressurize the system with smoke. people wander around in the building and look for where the smoke comes from and the leak is found. Depending on the severity of the leak(s) we either stop the test immediately or continue to find additional leaks. It depend on the volume of smoke entering the building.
Bear in mind this test is only used after checking everything that we can see and all obvious leaks are repaired.
Bear in mind this test is only used after checking everything that we can see and all obvious leaks are repaired.