Surveys
In order to assess the condition of a drain, an effective survey method is to use a small closed-circuit television (CCTV) camera probe. The camera is fed through the drain line underground and presents a detailed colour TV picture on the TV monitor. A videotape is also made to allow the survey to be reviewed at a later date. If required, the drain line can be fully cleaned, using water-jetting equipment, to enable a clear survey of the internal pipe structure to be undertaken.
The Drain Experts operate three fully-equipped drain survey units, each comprising a two-man team equipped with the latest colour CCTV equipment and high-pressure water jetting units.
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