The Minister with responsibility for water charges is sticking by his calls for water bills not to be refunded.
Minister Simon Coveney says the fairest way to treat all customers is to chase those who have not yet paid any bills.
Several Opposition parties say all bills should be refunded as part of any new regime.
Minister Coveney said that he won't favour that, as it's not a fair option.
"Personally, I don't think that's a good idea," he said.
"I think a lot of people who paid their water charges paid for a service, they knew what they were paying for, and they're not looking for their money back, they're just looking for equity and fairness to make sure that everybody pays what's due.
"People who have paid should not be put in a disadvantages position versus those who have not."
Party colleague and Minister for Finance Michael Noonan tonight appeared to raise the possibility of refunding water charges at a meeting of Fine Gael TDs.