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   Test Results
   Septic Tanks

   Dysfunctional Septic Tank System

   Evaluation By: Supervisor Lift Stations and Special Projects

Treatment was initiated April 25, 1991. The condition of the lift station was as such:

  • The pipes and pumps had approximately 1" grease buildup.
  • The walls had approximately 2" to 4" grease buildup.
  • There was floating grease in the wet well approximately 4" to 6" in the form of a mat.

After 7 - 10 days the floating grease mat started to breakup. Pump men were instructed not to clean the pit             during the test. Two week later the floating grease mat had vanished, all that was left was a white foam about a      half an inch thick.

The following week the pit was pumped out. The pumps and pipes were very clean (i.e. no grease). The wall of       the pit had a small buildup at the water line, which washed off with a spray of water. In conclusion we found:

  • The pit below the water line had no grease.
  • There was no floating grease.
  • The walls of the pit had a small buildup at water line of approximately 1", which was easily washed off.
  • The smell was reduced to almost nil.
  • We also think this treatment might have reduced the H2S in the pit, but until a complete test is done this is purely speculation.

Full Test Results