What is a plastic septic tank?


  • Easier to install because they are lighter in weight and can be transported with out heavy equipment.
  • They last longer by holding up to gases created by sewage and don’t deteriorate, crack, or rust like traditional tanks.
  • Tree roots cannot penetrate fiberglass tanks like concrete tanks.
  • If ever damaged they can be repaired more easily.
  • Easier to plumb with precisely cut holes and connects for PVC pipes
  • Plastic septic tanks can be water-tight and corrosion proof.


  • More costly.
  • May “float” out of the ground because they are lighter weight than concrete.
  • Have lower effluent levels
  • Can be damaged at installation.