Conventional Gravel System

• Preparation of trenches
  
  


• Installation of base aggregate
  
  


• Installation of top aggregate layer
  
  


• Overview of single drainfield trench
  
  


• Drainfield trench continued
  
  


• Overview of completed trench
  
  


• Completed trench, cont
  
  


• Completed system installation
  
  


• Diverter valve between existing system & repair system