Speaking yesterday, Mr Cull told the Otago Daily Times the connection to his home would only be resolved once council staff completed a wider review of the Water Bylaw 2008.
That was not expected until April next year, but Mr Cull said he was one of "hundreds" of homeowners in the same position.
He first contacted Dunedin City Council staff to alert them to the connection two years ago, but the existing bylaw gave staff no power to correct illegal and informal water connections, he said.
Many of the connections were historic - dating back to 1992 - and had been agreed between homeowners and council staff in good faith, he said.
"I'm just one of hundreds, especially on the Peninsula, and in many cases those connections were facilitated by the council," he said.
Mr Cull first outed himself for using the council water supply without paying in April this year, during a debate on the bylaw at an infrastructure services committee meeting.
He said he had bought his home 15 years ago, and had continued to top up water tanks on his property "from time to time" without paying ever since.
"I live in a house with an illegal water connection," he told councillors at the meeting.
Since then, council staff had in June calculated about 800 properties were connected to the council water supply, despite being outside designated supply zones and prohibited from connecting under the existing bylaw.
Many were in rural areas and paying a variety of charges, but the number also included 51 properties with "illegal" connections not paying anything, a report by council asset planning manager Laura McElhone said.
Mr Cull withdrew from the debate when the bylaw review was considered again at Monday's infrastructure services committee meeting, with councillors approving a revised bylaw for public consultation.
The revised version would give the council the power to formalise connections outside water zones and deal with deliberate illegal connections, and was expected to be adopted by April 1 next year, a report by council network manager Rezaul Haque said.
Council water and waste services manager John Mackie said once the new bylaw was in place, each property with an illegal or informal connection would be considered individually and a resolution reached. However, those properties found to have deliberately illegal connections could be sent a back-dated bill for unpaid water services, he said.
He could not say whether Mr Cull would be sent such a bill.
