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Methods and systems for locating an underground sewer using a buoy

  • US 5,790,476 A
  • Filed: 01/16/1997
  • Issued: 08/04/1998
  • Est. Priority Date: 09/12/1995
  • Status: Expired due to Fees
First Claim
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1. A system for monitoring a sewer, the system comprising:

  • a buoy;

    a camera associated with the buoy to provide at least one image within the sewer; and

    a hydrogen sulfide sensor associated with the buoy to detect a source of hydrogen sulfide within the sewer.

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