Sewage pump fault is traced and repaired
Tuesday 26th July 2011, 2:29PM BST.
ENGINEERS have fixed the electrical fault that caused a malfunction at Belle Greve wastewater pumping station.
States Works staff worked all weekend to find out what had made the auxiliary pump kick in and jettison 4,000 cubic metres – approximately 880,000 gallons – of raw sewage straight into Belle Grave Bay on Friday morning.
The auxiliary pump redirected the sewage from the long sea outfall, which runs a mile into the Little Russel, and put it through the short outfall pipe for around 50 minutes.
Guernsey Water director of water services Andrew Redhead said: ‘We have traced the problem down to an electrical connection on the signal line between a sensor that measures the depth of the water in the tank and sends a signal back to the pumps. It was that fault that seems to have caused the problem. It was fixed late on Sunday and so far it is running fine.’
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