Pirana uk
  Pirana uk manufacture a retrofit ABG (aerobic bacterium generator)  unit that simply drops into existing septic tanks and sits in your septic tank on the bottom, to breed microbes to clean up biomat clogged drains, it rejuvenates not only the tank, but the drain field, as it solves all three issues  Pirana uk have the sole rights to manufacture the P60 ABG and Pirana blend bacteria   for the whole of Europe.The Pirana ABG unit is installed in about three hrs by a team of nationwide installers, and there is no mess associated with any ground works.It's a simple, inexpensive solution to a problem caused by microbes , but cured by even more powerful inoculated microbes