"I'm all for economic development and jobs but the profit they make out of the water is based on getting it for free," Mr Nash said.
"Water is an economic input that allows commercial gain - why should you get it for free?"
He said just as there was a royalty due to the Government for the extraction of oil so too should there be one for water, suggesting a royalty of 10 cents per litre, payable to local government.
"Imagine what that would do for economic development in our region," he said.
It would also help preserve the resource.
"If you don't pay for something you don't value it, so why would there be any incentive to optimise usage?" Mr Nash said.
Tukituki MP Craig Foss, present at the opening with Deputy Prime Minister Bill English, said that the courts had found nobody owned water in New Zealand.
"If Labour has decided somebody owns the water I would be interested to find out who," he said.
The cost of obtaining resource consent and building infrastructure "certainly isn't cheap".
"Ask Mr Taylor or his bank," Mr Foss said.
Oil levies were an internationally accepted practice.
"I don't know of anywhere where the use of water, which comes from the sky and is replenished as opposed to oil which is not, is treated the same way."
Hawke's Bay Today has been inundated by comments on the exportation of water.
Hastings resident Bill Kearns said public sentiment would rise only if there was a dry summer as predicted and water restrictions placed on farmers and residents.
"It doesn't seem right to me if the locals have to turn their tap off but these guys from offshore are still going to be able to bottle their water and sell it," Mr Kearns said.