ABSTRACT
The paper shows the results of research of real water demands (recorded every second during minimum ten days) for a few eleven-storey buildings with different number of flats (from 80 to 330 flats) and influence of demand patterns on correctness of water meter indications. Additionally the results of comparison research of water meters with the same diameter but from different producers was run to show the fact that usage of “C” class water meters (but still oversized) has little influence on water balance for chosen buildings in comparison with water meter of smaller diameter but chosen in accordance with real water demand pattern.
