Didn't know where to post this - please move if there is a more appropriate section
I was without mains water for a couple of weeks whilst building works were taking place. For drinking water, tea, coffee etc I purchased huge amounts of Buxton Bottled water.
I would normally use a water filter for tap water because of the lime scale - but didn't for the bottled water - within a week the scale in the kettle was so thick, it took 3 sachets of descaler to remove it !
I thought bottle water was filtered in some way, is this not so ?