There are many causes of drainfield failure. One of the main ones is simply "old age." A biomat develops over time blocking the soil pores that absorb the wastewater. This process can be reversed with remediation.
The Remediator is an Aerobic Bacteria Generator that is installed into the existing septic tank and reverses the biomat that has caused the drainfield to fail. This is an alternative to complete drainfield replacement.
The Remediator treats the waste in the septic tank to a higher level sending "cleaner" water to the drainfield.