Drainfield recovery using microbubble aeration
This system had effluent surfacing within 8 years of being constructed. A heavy biomat build up in the drainfield caused the failure. The drainfield rockbed was completely full of liquid.
- The University of Minnesota was consulted to confirm soil conditions and reason for failure.
- A Microbubble aerator was installed in the septic tank.
- Surfacing was eliminated within a month.
- The liquid level in the rockbed was normal at 60 days.