Days after NSW imposed several new limits on water trading, the firm Waterfind used its annual water market report to press governments to abolish the limits.

NSW and Victoria have struck individual deals with the Commonwealth that restrict the amount of water that can be purchased from those states.

The state deals have complicated the Rudd Government's plan to buy back $3.1 billion of water entitlements for the health of the river system, and the deals are at odds with plans to govern the basin with a single set of rules.

Waterfind said barriers to water trading made it harder for irrigators to make the most of their assets. It said governments should "immediately review all existing trading barriers with an intent to fully remove these barriers by December 2009".

Victoria recently revoked one contentious trading limit but will not totally phase out another until 2014.

Waterfind urged irrigators to tell local parliamentarians of the impact the trading limits were having on their daily operations.

Waterfind joins environmentalists, the Australian Competition and Consumer Commission and the South Australian Government in calling for the abolition of trading limits.

The future of one of the biggest water entitlements in the Murray Darling basin could become clearer this week when the tender for Queensland's huge Cubbie Station closes.

Numerous suitors are believed to be interested in the cotton property, which can store up to 538 billion litres of water. Many expect the property will continue, at least partially, as an agricultural site.