test de fumée

OBS: Un résultat négatif (aucune fumée visible) ne permet toutefois pas de conclure sur l'inexistence de l'infiltration/captage. La fumée doit être non toxique, inodore et non salissante.

CONT: In Sydney, properties may have illegal connections, where the rain water pipes have been illegally connected to the sewer. The most economical method of checking this condition is with a smoke test. Testing the pipes can also detect breaks and blockages as the smoke is seen penetrating from beneath the ground.