Could Sydney’s creaking sewage system be linked to the spate of shark attacks?

Experts say dirty waters can attract more sharks – but there are many other factors at play

• Fatberg the size of four buses likely birthed poo balls that closed Sydney beaches – and it can’t be cleared

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After four shark attacks in New South Wales in less than 48 hours, authorities on Tuesday urged beachgoers “just go to a local pool instead”.

Sydneysiders have heard similar warnings before – in the past, they’ve been issued for beaches polluted with faecal matter after heavy rains.