I used boiled water for formula and drinking until DD#1 was about 8 months, then I started giving her filter water to drink. Now depending on where we are she will have either filter or tap water to drink. She still gets boiled water for her nightly formula bottle because DD#2 is having boiled water in her formula so its there.

I agree with a pp - they put EVERYTHING in their mouths by this stage so why bother.

Giardia is awful Mummy of Many. Hope you're over it properly now. I got it in Bali and it still gives me grief every now and then.