# The Water Supply (Water Fittings) Regulations 1999, Paragraph 11

Extent: E+W

Water systems shall be capable of being drained down and be fitted with an adequate number of servicing valves and drain taps so as to minimize the discharge of water when water fittings are maintained or replaced. A sufficient number of stopvalves shall be installed for isolating parts of the pipework.

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Source: https://www.legislation.gov.uk/uksi/1999/1148/schedule/2/paragraph/11 (the official version)
Page: https://openlegislation.uk/water-supply-water-fittings-regulations-1999/schedule-2/paragraph-11
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.