1950_WATERWORKS_REGULATIONS — Page 8

Waterworks.

[CAP. 102

authority shall in all cases decide the maximum storage to be allowed--

For domestic purposes in ordinary typė houses or flats—

(a) Flushing supply (where a mains supply is

approved)—–—–

10 gallons per flushing point whether water

closet, urinal or bidet.

Minimum 50 gallons.

Maximum 400 gallons.

(b) Hot water system-11⁄2 times the capacity of the hot

water cylinders.

(c) Cold water system-nil, except where a house or flat is situated at such a level that a gravity supply from the mains cannot be guaranteed.

For trade purposes-Factories, restaurants,

eating houses, etc.

The amount of storage shall depend on the average daily requirements at the premises, and in general approval shall not be given for an amount which exceeds half such requirements.

(17) All storage cisterns shall have stop cocks on the G.N.A. 75/51. inlet and delivery pipes.

Hot water apparatus.

(18) Except with the written permission of the water authority all hot water apparatus such as geysers, engines or other appliances in which water supplied from the water- works is heated shall be fed from a cold water cistern and shall not be connected directly to the main. The supply pipe from the cold water cistern shall feed the hot water apparatus only.

(19) If the cold water for such apparatus is supplied from a cold water cistern which is used for other purposes no pipe other than the connexion to the hot water apparatus shall draw water from the lower half of such cistern.

(20) Hot water cylinders shali be constructed of gal- vanized iron or other approved material, tested to double the normal working pressure, and adequately supported. No

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