The original Toathrone which was replaced with the PFP09 Vermiculture (wormfarm) Tank plus sand filter. The new unit was custom fabricated, supplied and installed by PFP09 Ltd to one of New Zealands outer Islands, Great Barrier Island. Flushing toilet, plumbing and irrigation field all supplied by PFP09. Septic tank maintenance and servicing by Wai Water septic tank services.