The pressure of all manufactured gas for heating, power or illuminating purposes supplied or furnished to any customer by any person engaged in the business of furnishing or supplying gas within the city shall at no time at the inlet of consumer's meter be less than one and one-half inches of water.
No consumer shall be supplied with gas having more than 100 percent fluctuation in pressure above the minimum pressure at the inlet of such consumer's meter.
(Prior code § 187-4)