°Water used, in any type of building, for domestic purposes, principally drinking, foodpreparation, sanitation and personal hygiene (but not including space heating, swimming pool heating, or use for processes such as commercial food preparation or clothes washing).
"1996: by Geraint John, Kit Campbell, Handbook of Sports and Recreational Building Design Volume 3: Ice Rinks and Swimming Pools - Heating, ventilation, domestic hot water and lighting use significant amounts of energy."