Councillors at this week's infrastructure committee voted to approve a new procedure for dealing with 724 homes receiving reticulated city water, despite being outside the council's water supply zones.
That included Mr Cull and 31 other homeowners receiving free water through "informal" connections to council pipes, either directly or by connecting to another home's informal supply.
Mr Cull last year acknowledged he had been receiving free water from an "illegal" connection, which he inherited when he bought his home 15 years ago. He first reported the matter to council staff in 2008, but was told the matter could be resolved only when the council's water bylaw was updated.
However, council water and waste services manager John Mackie confirmed on Tuesday an invoice for a second payment - covering another two years of backdated water bills - would be sent to Mr Cull and other home owners.
That would happen after the new procedure accepted by councillors on Tuesday was approved at next month's full council meeting.
The new bylaw allowed backdated bills of up to three years, but Mr Cull's initial payment - totalling $391.44 - covered only the normal domestic uniform annual charge for 2010, Mr Mackie confirmed.
Mr Cull also paid $414.50 to cover water supplies in 2011, but Mr Mackie said a further backdated bill for two more years' water would be sent to all homes with "informal" connections, including Mr Cull's.
The council had also sent 31 other properties one-year invoices for water taken without paying using informal connections. Payments totalling $12,134 were received, Mr Mackie said.
Three payments totalling $1174 remained outstanding, but were expected to be paid, and further invoices covering the full three-year period - less the sums already received - would be sent to all 31 properties.
The procedure approved on Tuesday would also allow the connection of homes outside water supply zones "case-by-case", after planning and other concerns were considered.
