Wessex Water is told to pay £300,000 after a sewer overflowed into a Somerset river tributary.
The company paid the highest total to the Environment Agency for pollution and poor performance.
Melissa Stroud's garden was used to pump sewage while Thames Water engineers fixed a sewer.
Ash Smith and Peter Hammond were recently portrayed in the Channel 4 docudrama Dirty Business.
Raw sewage has been surrounding people's houses for 20 years, according to a campaigner.
The sewer at Ashurst Bridge has burst several times over the past five years.
Scientists behind a project to turn human wee into plant fertiliser hope to grow their first forest.
Water bills will rise further for seven million customers after a regulator backed extra price increases.
The spiky metal tools are being used to clear debris from hard-to-reach narrow pipes and prevent more serious issues.
