Reuben Page from the Environment Agency says that the oxygen levels in the canal are now back to normal.
The oxygen levels were affected by the recent warm weather, which the Environment Agency says usually only affects still water.
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It will turn cloudy in the morning with rain arriving soon after.
A sunny start for most. However cloudier skies will spread eastwards during the morning, with a few showers possible.
Fans had a chance to meet their favourite Team England stars as they showed off their medals in a big celebration at Victoria Square.