- The above is a sewer network that we surveyed and mapped from a blank canvas (background layers and MH ref numbers have been removed).
- This data did not exist prior to our surveying.
- All MHs plotted and located using Infonet mobile.
- All pipes cctv surveyed.
- Blue lines are storm sewers, green are combined sewers and brown are foul sewers.
Invert Surveys can use a combination of CCTV surveys and Manhole surveys to create a network of existing sewers and/or new sewers.
These are particularly prevalent since the ‘private drains and sewers act 2011’ when private sewers had their management transferred to water companies.
Our surveys are carried out from PC based rigs with Wincan VX and Wincan Map/Web reporting software. We also use infonet/infoasset mobile software to capture the survey data for connectivity and mapping. GPS is then used to plot grid reference and cover levels.
We use sonde (beacon) for locating and also dye testing for connectivity.