• How did they get in? Try geckos they are very effective for getting rid of cockroaches in side. Septic tank??? how??? and how did you know?
  • Boric acid or tadpoles will work. Here is a link to a few more ideas:
  • Just flush a petroleum based insecticide down your toilet...Oil floats on water, thus giving insects more exposure time (water levels in septic tanks rises and falls) to kill them.

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