By Rita Sobot & Julie Delahaye Brits planning Spain holidays should take note of some tough new water restrictions in Tenerife, following mainland Spain which has declared a drought emergency. So far the Canaries and Balearics have been holding off introducing new rules, but now one municipality in Tenerife is imposing restrictions on water consumption, prompting fears that others may follow suit. In Fasnia, on the southern side of the island, the new order rohibits the use of drinking water for irrigation; re-filling swimming pools, ponds, reservoirs or tanks; cleaning facades; vehicle washin…