The Government's being slammed as dishonest after redirecting $70 million of the pandemic response fund, to Three Waters reforms.

Official documents show the cash was diverted to Three Waters in April, despite Grant Robertson promising to only use the fund for the government's Covid response.

National party Finance spokesperson Nicola Willis told Mike Hosking the Government hasn't been truthful.

LISTEN ABOVE

• Finance Minister Grant Robertson addresses Three Waters Reform alternative proposal
• John MacDonald: Three Waters alternative won't be plain sailing