Dwelling houses to be provided with tanks

(1) Every owner of a dwelling-house, the roof of which is not a thatched one, shall erect and maintain in good order a tank or tanks in connection with the dwelling-house, for the storage of rain water, and in respect of every new building to be used as a dwelling-house erected on or after the coming into force of this Act, the tank or tanks shall be capable of storing not less than five gallons of water for each square foot of floor space contained within such dwelling-house. (2) No tank required to be maintained under this section shall be deemed to be in good order, (a) if it is not connected by suitable pipes to gutters attached to a sufficient surface of roof 38 or platform exposed to the weather or if such gutters or pipes are not in good order; (b) if the tank is not fitted with apparatus for draining off water therefrom without waste; (c) if the tank is not watertight; or (d) if the tank is not provided with a suitable covered or screened opening for conveniently inspecting and repairing the inlet and outlet, and for cleaning.