Technical Booklet N Drainage·Page 11·Table 2.2

Table 2.2 Flow rates from appliances

Specifies the assumed flow rates in litres per second for various sanitary appliances to be used in calculating sanitary pipework capacity.

drainage non-domestic

Appliance Flow rate (litres/sec) WC (9 litre cistern) 2.30 Washbasin 0.60 Spray tap basin 0.06 Sink 0.90 Bath 1.10 Shower 0.10 Automatic washing machine 0.70 Urinal (per person unit) 0.15

Source — /Users/richardhill/Documents/planning-arch-project/data/documents/regional/Technical Booklet N - Drainage.pdf