We're on septic, and the only time I've ever had a whiff of it, was when I was on the roof running a snake down the vent in an attempt to clear a clog. But I was about 2' from the vent. Never smelled it on the ground unless the cleanout cap was off. I'll be interested to see if someone has heard of this cap. Jim.
Home of Irish Setter Rescue of North Texas
When Irish Eyes are smiling, they're usually up to something!!
At a minimum, I'm Pentatoxic...but most likely, I'm a Pentaholic. There seems to be no known cure. Pentatonix, winners of The Sing Off, season 3