With the goal to make politicians listen, it seems their protests have given them a "win".

While their end-game may have varied from "can the plan" to fixing problems decimating communities, the show of solidarity seems to have hit home.

Not coming away empty handed, a meeting on Monday at Parliament House has resulted in ministers seeking an agreement from Ministerial Council on December 17.

Griffith rally coordinator Leo Ieraci was incredibly proud to be a part of a movement sparking potential change, yet said it was too early to vouch for a win yet.

"We won't know how successful we have been until they drop the doors down, and we see the rivers at the level they should be for the drought," he said.

"That'll be the indication if we have gotten the message across. And if we haven't, we will have to think of another way."

Over 50 people from Griffith went along to the rally, a dozen trucks, with an additional 27 passengers on the bus.

"A lot of people couldn't make it, and I received a heap of phone calls from people before to see how things are going - there was a great deal of interest.

"There should have easily been around 1000 people from the Riverina area alone."

He thanked the SpeakUp 4 Water campaign for organising the rally, Leeton coordinator Robert Quodling, as well all the supporters from Griffith.

Rally organisers including Southern Riverina Irrigators leaders Chris Brooks and Darcy Hare met with Minister of Water Resources David Littleproud, touting the resulting plan as a "win for protesters".

The agreement would see the Interim Inspector General Murray Darling Basin Water Resources (IIG) Mick Keelty immediately investigate the impact of the changing distribution of inflows to the Southern Basin on state shares under the Murray Darling Basin Agreement.

It will also consider any consequential impacts on state share resulting from reserves required under the agreement, including how these interact with state allocation policies.

Mr Brooks said although the Minister's commitment was a win, it would only make an impact if the state and federal government's agreed to give power to the IIG.

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"For the first time that I've been involved in this water debate it's been really positive, " Mr Brooks said.

"The message I would say for these people to take home is you're going to have a future... they've given me the confidence that they accept what we're saying is right.

"I look forward to working with Mick Keelty to identify the issues, that he can report back to Minister Littleproud by the end of March 2020, and that's a short period for us to tolerate by comparison to the belting we've had since 2012."

The IIG will report back by March 31, 2020.

A spokesman from Farrer MP and Environment Minister Sussan Ley's office said she had pulled the strings making the meeting between the organisers and Mr Littleproud a reality.

"Sussan was able to arrange an hour-long meeting for rally organisers with the Minister for Water Resources David Littleproud," the spokesman said.

"Minister Littleproud agreed to continue talks with irrigators and further raise their concerns with NSW, Victoria and South Australia, as the states ultimately control allocations under their long-term water sharing agreements.

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