The flow be expected in the relevant pipe at an arbitrary time.
The sum of the design flow for each connection.
This refers to activities in which the drain is only used occasionally such as homes, offices or similar.
Corresponds activities where wastewater is loaded relatively frequently such as hospitals, schools, hotels or similar activities
Corresponds activities where wastewater is used more or less all the time such as public toilets
Aimed activities have särskillt great demands on the sewer such as laboratory etc.
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