If it’s been some time since you’ve pumped your septic tank, it could be getting close to full. A few surefire signs that it’s full and time to be pumped are slow drains, sewage backups into the home, and foul odors coming from your drains. Additionally, if you notice that your lawn is overly healthy, this could be a sign that the effluent is draining at an incorrect pace or that solids are also being emitted into the drain field.