Be careful refilling water bottles.
This may be true or not but my husbands cancer has made me very cautious with even his liquid intake.
Have read that the plastic bottles water is sold in are made to eventually biodegrade, probably in 100 yrs (?), so can release chemicals over time.
They weren't designed to be used over and over. We used to re-use them all the time but now really clean well with a little bleach water and limit the refill usage.

Can we get a prescription for the amount of bottled water needed daily?
It can and does add up fast.
Maggie