Introduction: Drinking water calculation is a crucial step in the planning of water supply systems in buildings. It is used to determine the need for drinking water and to ensure that sufficient water with sufficient pressure is available for various purposes such as drinking, cooking, cleaning and sanitation. DIN 1988-300 is an authoritative standard in Germany that defines the requirements for drinking water installations in buildings. In this article, we will explain the basics of drinking water calculation according to DIN 1988-300.

Scope of DIN 1988-300: DIN 1988-300 applies to drinking water installations in buildings and specifies the minimum requirements for planning, execution, operation and maintenance. It is applicable to single-family and multi-family houses, office buildings, industrial plants and other types of buildings.

Calculation of the amount of drinking water: According to DIN 1988-300, the amount of drinking water is calculated based on the number of connected taps and the expected use. Various factors are taken into account, such as the number of people in the building, the type of use (residential, commercial, industrial) and the type of outlets (e.g. washbasins, showers, toilets).

Pressure calculation: DIN 1988-300 also specifies requirements for the required water pressure to ensure adequate supply to the outlets. The pressure calculation takes into account the height difference between the water supply source and the outlets as well as the pressure loss due to friction and other factors.

Material selection and dimensioning: The standard also provides recommendations for selecting suitable materials for drinking water installations to ensure drinking water quality and minimize the risk of contamination. In addition, it contains instructions for dimensioning the pipes, fittings and other components of the drinking water system.

Hygiene requirements and maintenance: DIN 1988-300 also includes regulations on the hygiene and maintenance of drinking water installations. This includes measures to prevent contamination, regular inspections, maintenance and, if necessary, the implementation of disinfection measures.

Conclusion: Drinking water calculation according to DIN 1988-300 is an essential part of the planning and implementation of drinking water installations in buildings. The standard ensures that the drinking water supply