THE most radical overhaul of backyard pool safety laws in two decades may be ordered.
It comes after the "preventable" drowning of a Sydney toddler.
Deputy State Coroner Paul MacMahon yesterday urged the State government to implement statewide rules giving home owners three years to ensure their pools comply with current laws.
Pool owners should also have their pools checked for compliance every two years, and face "substantial penalties" if they failed to comply.
Local councils should also maintain a register of all backyard pools and carry out additional audits, Parramatta Coroners Court heard.
The recommendations follow an inquest into the death of two-year-old Ethan Corless who drowned after climbing through a gap in a poorly constructed pool fence in July last year.
Ethan's mother was busy feeding his four-month-old brother inside the family's Pendle Hill home at the time of the tragedy.
Mr MacMahon said pool fencing was an essential "second line of defence" for those times when parental supervision of young children broke down. "No child can be supervised at all times and that is why pools are required to be fenced," he said.
According to the evidence presented to the inquest, up to 50 per cent of backyard pools fail to meet the current safety requirements - a figure that Mr MacMahon described as "worrying".
"I think it's imperative on the part of government that action be taken to ensure compliance," he said. Premier Barry O'Farrell said he looked forward to receiving the coroner's recommendations and considering them in greater detail.
"Any drowning of a child in a backyard pool is a tragedy - we need to do everything we can to ensure appropriate safety standards are in place and are being adhered to," he said.
Ethan's mother Elise said she had been aware her toddler could squeeze through several gaps in the pool fence.
Ms Corless said she and husband David had seen their little boy squeeze through holes in the fence and had tried to block the gaps with materials from around the home.
The inquest was also told the fence, which had been constructed by a landscape designer, had not been inspected by council and did not comply with regulations.