In the General area under Material, you define settings that influence the material determination.
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Deactivate or activate the Mass determination of sanitary fixtures and fittings checkbox.
Important: If you have deactivated the Mass determination of san itary fixtures and fittings checkbox, the sanitary fixtures and fittings, e.g. washbasins, from the waste water trade are not included in the mass determination.
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In the input field Suppression of individual supply lines smaller, enter the line length of the individual supply lines in cm up to which the line is not included in the material determination.
Important: The settings made here have an influence on the pipes and fittings determined in the pipe network.