So your place of business or your basement is starting to get a bad sewer gas smell. That place you hardly ever use, the one with the floor drain, is starting to really reek. But what could be causing this awful smell? Do you need a plumber to come check it out? Or is there a way you could solve this putrid smell problem yourself, like the strong willed business or homeowner owner you are? Well, let’s dive in to the world of dry traps and floor drains.