Hi everyone We determine both ‘pressure constraint’ and ‘fire flow constraint’ in ‘fire flow manager page’, but IT bases ‘pressure constraint’ as basic fact, fixes it and calculates available fire flow according to ‘pressure constraint’. Maybe the ‘fire flow’ which was calculated becomes less than ‘fire flow’ we need. Please explain about it’s logic and tell me why IT does not base ‘needed fire flow’ and calculate ‘available pressure’? Mohsen
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