A jury has returned an open verdict into the death of Robert Geach.
He was pulled from a filtration tank at South West Water's sewage treatment works in Falmouth two years ago.
The 54 year old, who worked for the water company, was found inside the tank in December 2013.
South West Water has said that since the father-of-two's death they have made safety changes.
South West Water has been fined more than £200,000 for polluting the River Plym in Devon.
The Exeter based company admitted five counts relating to incidents from the Camels Head Plant. They all occurred in 2013.
Work starts today on Exmouth beach to try to fix a giant sink hole. Engineers believe a blocked water pipe underneath the beach is responsible. The two metre hole has opened a number of times over the last two months - especially after heavy rain.
There's a warning that the recent heavy rain could affect water quality at some beaches in the region. It's caused by run-off from fields and outfall pipes getting into the sea.
South West Water says the problem won't last long but people should check its 'beach live' service for information.
Around 200 homes are without water in the Ivybridge area due to a burst pipe.
Written complaints to South West Water have risen by 5.4% compared to last year.
According to figures from the Consumer Council for Water, complaints rose by 5.4% in the period 2013/2014 compared to 2012/13. But the company has defended it's position and issued the following statement:
South West Water has been ordered to take action to protect a Cornish beach after allowing raw sewage to be pumped into the sea for the third time this season,
Swimmers had to leave the sea at Godrevy after the latest incident and a surfing event was cancelled.
The National Trust today called for measures to be in place to stop it happening again and West Cornwall MP, Andrew George, has called on South West Water to clean up its act.
Mr George said, "This isn't the first incident in the St Ives and St Ives Bay Area......... I am bound to ask whether South West Water have a sufficiently robust system in place to cope with the demands of what was unexceptional rainfall."