Yup, I actually pleaded to take a bottle of water home, and I carried out the following test.
The gf's niece and nephew were here, I decided to pour them a glass each of Ricks super water :naughty they agreed it was nice, immediately after that I had been running the tap for super fresh tap water, they took a sip of the tap water and both spat it out :lol
It's funny how you don't know until you have them together..
I would go as far as saying ricks water is probably more pure than bottled stuff as no chemicals have been added!!