Our Tips for Clean Drains
The individual householder is usually responsible for the whole drainage system up to where it joins the public sewer.
The local council is responsible for cleansing any part of a communal system if they were constructed prior to 1937. However the council can reclaim the cost of repair from the householders.
All systems constructed after 1937 are the sole responsibility of the joint householders.
They must collectively share the cost of repairing and cleansing the drain up to the public sewer.
If unsure, contact the local Utility company either United Utilities (www.unitedutilities.com) for North West England or Welsh Water (www.dwrcymru.com)
Alternatively you could try the Technical Services Department of your local council to determine responsibility for your drainage system.