Connecting to a Trunk Sewer
Trunk sewers collect the flow of sewage from local areas and other sewers, rather than individual homes or developments. You’ll be able to identify them on the public sewers map. In constant flow, connecting directly to them can be complex and dangerous, which means permission can often be refused. In this case, you’ll need to find an alternative sewer, or install a septic tank or sewerage treatment plant instead.
If they do allow connection, they’ll likely insist on doing the work themselves under Section 107 of the Water Industry Act and billing you for it. This is likely to be expensive and you’ll need to agree the quote beforehand.
Surveys may be required to determine the line, level and condition of the sewer. These may have to be done at night, when flow in the sewer is reduced. Delays can be caused by having to work at off-peak times.