Run that by me one more time...

Excert From "The Water Supply (Water Fittings) Regulations 1999"

"Plumbing materials and fittings must be of a suitable standard. It is not illegal to sell unsuitable fittings and appliances but to install one would be illegal, so check suitability before purchase."

Hmmmm, may be I should campaign to get the regulations translated into common sence.