Blue or blue-green stains on sinks, baths and porcelain, indicate that there is probably copper in the water supply. Copper is usually from the corrosion of copper plumbing. The amount of copper can be found by sending a water sample to a lab for testing.
Barcelona, the traditional centre of Catalan movements for independence, is the capital of both the province of Barcelona and the autonomous community of Catalonia. The city is governed as a municipio (municipality) of Spain, and its elections are held every four years.
Tourism and attractions guide to Barcelona. Catalonia and Barcelona has become one of the first tourist destination of Spain, it knows how to please the big majority : with a history among the oldest in Europe, a capital, Barcelona, which never sleeps and an inland full of charm not to forget beautiful beaches in La Costa Brava.