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Supply Tank

The tank may be used for the combined storage of domestic (e.g. flushing) and fire fighting waterprovided that the maximum potential draw off by domestic services can in no way diminish thesupply for fire fighting below the required reserve.

The minimum effective quantity of water required to be available, having regard to the floor area factor of the largest floor is as follows:

Floor area (gross) required

Water storage

Not exceeding 230 square metre

9 000 L (9 Cubic Metre)

Over 230 square metre but not exceeding 460 square metre
18 000 L (18 Cubic Metre)
Over 460 square metre but not exceeding 920 square metre

27 000 L (27 Cubic Metre )

Over 920 square metre
36 000 L (36 Cubic Metre )

A non-ferrous non-return valve to be provided between the downcoming main and the fixed fire pump.


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(C) WKS Fire Engineering Co. & WKS
Engineering Ltd All Rights Reserved

Office Address: Room 1, 5/F Tai Shing Industrial Building, 273-279 Un Chau Street, Sham Shui Po, Kowloon
Workshop Address: Rm 4, Block A1, 15/F., Kin Hing Industrial Bldg, 17-23 Shek Kin Street, Kwai Chung
Tel:(852)2625 5554 Fax:(852)2625 0035

Update Date: 25-8-2011

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