Water heating by a domestic water heater. Two conflicting safety issues affect water heater temperature—the risk of scalding from excessively hot water greater than , and the risk of incubating bacteria colonies, particularly "Legionella", in water that is not hot enough to kill them. Both risks are potentially life-threatening and are balanced by setting the water heater's thermostat to . The European Guidelines for Control and Prevention of Travel Associated Legionnaires’ Disease recommend that hot water should be stored at and distributed so that a temperature of at least and preferably is achieved within one minute at points of use. If there
Malvern Water (bottled water) Malvern Water (bottled water) Malvern Water is a brand of bottled drinking water obtained from a spring in the range of Malvern Hills that marks the border between the counties of Herefordshire and Worcestershire in England. The water is a natural spring water from the hills that consist of very hard granite rock. Fissures in the rock retain rain water, which slowly permeates through, escaping at the springs. The springs release an average of about 60 litres a minute. The flow rate depends on rainfall and can vary from as little as 36 litres (8 gallons) per minute to over