A moderate-scale residential area consists of 60 unit double storey terrace houses, 40 unit double storey semi detached houses and 20 unit single storey bungalow houses with ordinary construction and the floor area of 2480, 2912 and 3500 square feet, respectively. With the aid of following information, estimate the fire demand and the total flow required in one day. Table 1: Estimated Water Demand Rate for Planning of External Water Reticulation System Type of Premises/Buildings Low cost terrace house / low cost flat Single storey terrace house / low cost house (less than RM25,000) / low medium & medium cost flats Double storey terrace house / high cost flat / apartment / town house Semi detached house / cluster Bungalow/ condominium Required fire flow (litre/minute) <3780 (<1000gpm) Average Daily Water Demand (Litres) 3780-4725 (1000-1250 gpm) 4725-5670 (1250-1500 gpm) 5670-6615 (1500-1750 gpm) 6615-7560 (1750-2000 gpm) 7560-8505 (2000- 2250 gpm) > 8505 (>2250 gpm) 1100/unit 1300/unit 1500/unit Uniform Technical Guidelines, Suruhanjaya Perkhidmatan Air Negara (SPAN) Table 2: Residential flow duration 2000/unit 2000/unit Duration (hour) 4 5 6 7 8 9 10

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