Thats because bottled water is essentially a naturally pure product.
Whereas tap water is pretty much recycled urine and waste products....mmmm, tasty
ISTR that Coca Cola got in trouble for bottling tap water and selling it as bottled water.
Think it went down like a lead balloon though. Ah, wait, Wikipedia is your friend: seems that other countries still have the product (bottled tap water) but in the UK:
United Kingdom
Dasani was launched in the
UK on 10 February 2004. The product launch was labelled "a disaster",[sup]
[6][/sup] a "fiasco"[sup]
[7][/sup] and a "PR catastrophe".[sup]
[7][/sup]
Early advertisements referred to Dasani as "bottled spunk" or featured the tagline "can't live without spunk". These slogans were used seemingly oblivious to the fact that
spunk is
slang for
semen in the UK.[sup]
[8][/sup][sup]
[9][/sup]
Prior to the launch, an article in
The Grocer trade magazine had mentioned that the source of the Dasani brand water was in fact treated tap water from
Sidcup, a suburban development in London. By early March 2004, the mainstream press had picked up on the story[sup]
[10][/sup] and it became widely reported that Sidcup tap water was being treated, bottled and sold under the Dasani brand name in the UK.[sup]
[6][/sup] Although
Coca-Cola never implied that the water was being sourced from a
spring or other natural source, they marketed it as being especially "pure". This led the
Food Standards Agency to request
Hillingdon trading standards officers to launch an investigation into whether the claim was accurate.[sup]
[11][/sup]
Richard May, Chief Publicity Officer of Dasani, was said to be disappointed that the water had not been more successful.
The media made mocking parallels with
an episode of the well-known
BBC sitcom Only Fools and Horses, in which protagonist
Del Boy attempts to pass off local tap water as bottled "Peckham Spring".[sup]
[6][/sup] Del's scheme fails when he pollutes the local reservoir, causing the bottled water to glow yellow.
On 18 March 2004, UK authorities found a concentration of
bromate, a suspected human
carcinogen, in the product that could be considered harmful if consumed in large quantities. Coca-Cola immediately recalled half a million bottles and pulled the "Dasani" brand from the UK market.[sup]
[12][/sup] Shortly after, plans to introduce the brand to
Continental Europe were announced to have been cancelled as well. Bromate was not present in the water before Coca-Cola's treatment process. During that process the bromate was produced from the water's
bromide.