Can You Pass This Basic Plumbing Quiz?Share:FacebookPinterestTwitterMailWhy is a drain trap essential?78%Next Correct Incorrect A drain trap retains a small amount of water to block sewer gas from escaping. Why is a drain trap essential? It helps your septic tank function It traps food particles in your dishwasher It prevents debris from clogging your drain It keeps unwanted sewer gas from seeping into your home 78%
