I'm in an area where they have announced the water supply is contaminated (pesky anglian water). I am ff a 3 month old and while they're saying boiling the water makes it fine I just feel more comfortable not using the tap water for her. I have a supply of cartons but it's going to be expensive to feed her on those for the weeks they reckon it's going to be before the all clear. If I use bottled water does it need boiling before using to make up feeds?