FAQ Category: Part G - Sanitation, hot water safety and water efficiency

Requirement G1 states that wholesome water must be supplied to:
any place where drinking water is drawn off.
any sink provided in any area where food is prepared.

It also requires that wholesome or softened wholesome water is supplied to:
any washbasin or bidet provided in or adjacent to a room containing a sanitary convenience.
any washbasin, bidet, fixed bath or shower in a bathroom.
One of the reasons for setting out where wholesome or softened wholesome water should be supplied to is to clarify where it is acceptable for alternative sources of water, such as greywater and rainwater, to be used. G1(2) sets out that such alternative sources of water can be supplied to a sanitary convenience fitted with a flushing device.

No. The Approved Documents provide guidance about compliance with specific aspects of the Building Regulations in some of the more common building situations. There is no obligation to adopt any solution contained in the Approved Document if you prefer to meet the relevant requirement in some other way. However, you should check with your building control body that your proposals comply with the Building Regulations (which are reproduced in the green shaded boxes in the Approved Document).

If guidance in the Approved Document is followed there will be a presumption of compliance with the requirement(s) covered by the guidance. However, this presumption is not conclusive, so simply following guidance does not guarantee compliance in an individual case.